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Digital Signal Processing Question & Answers

June 5, 2021 By WatElectronics

This article lists 100+ Digital Signal Processing MCQs for engineering students. All the Digital Signal Processing Questions & Answers given below includes solution and link wherever possible to the relevant topic.

Signal conveys information using gesture, action, and sound. The signal can be classified into two types one is analog and another one is a digital signal. Most of the signals are analog in nature means the signal is continuous with respect to time, to convert an analog signal to a digital signal we can use sampling and quantization.

Analog signal first converts into the discrete signal using sampling and quantization n which the signal is sampled at a discrete interval of time. Once the discrete signal is obtained then the signal is converted into a digital signal. Signal processing is performed to analyze, modify, and synthesize the signal.

There are three types of signal processing they are analog signal processing, digital signal processing, and mixed-signal processing. Digital signal processing is flexible in operation, low cost, and is a stable system.

There are two types of signals are there they are analog and digital. The most convenient and accurate signal processing technique is digital signal processing. The signal processing is performed to analyze, modify, and synthesize the signal. Digital signal processing can be used in speech and audio processing, image and video processing, military and space applications, etc. The quantizer, sampler, digital signal processor, and decoder are the main elements of the digital signal processing system.

1). The analog signals are categorized into ________

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2). If discrete-time signal passes through an analog to digital converter we get ______

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3). The technique where processing is done on an analog signal is nothing but ______

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4). The most convenient and accurate signal processing technique is _____

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5). The advantages of digital signal processing are _____

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6). The impulse response of FIR filter is ______

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7). ______ are the major applications of FIR filter

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8). The non-recursive FIR filters are always ______

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9). The advantages of FIR filters are _________

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10). How many types of signals are there?

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11). Analog signals converts into digital signal using _______

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12). The signal processing is performed to ____________ the signal

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13). How many types of signal processing are there?

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14). The digital signal processing can be used in _______

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15). The disadvantages of FIR filter are _________

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16). The number of complex addition in the direct computation of DFT is equal to _____

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17). The formula for percentage saving of addition in FFT is __________

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18). The formula for percentage saving of multiplication in FFT is __________

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19). ________ is the disadvantage of digital signal processing

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20). If the processing is on a digital signal then the signal processing is called as _________

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21). The zero state response also called as ______ response

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22). The scaling operation also called as __________

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23). _____ parameters are required to calculate correlation between X(n) and Y(n) signals?

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24). The zero input response also called as ______ response

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25). The function of the autocorrelation is ______

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Digital Signal Processing MCQs for Interviews

26). The difference between quantized and unquantized is called quantization _______

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27). Depending upon the number of independent variables the signals are categorized into ________

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28). __________ are the examples of random signals

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29). The signals are categorized into ________ based on repetition nature

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30). The signals are categorized into ________ based on reflection

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31). _________ are the main elements of digital signal processing system

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32). The speech signals are _______

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33). The kinds of sounds are of ___________

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34). _________ is an application of speech coding

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35). ______ are the parameters of speech

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36). ____________ is an application of speech recognition

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37). __________ are the common methods of speech analysis

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38). The parameters of speech coding are ________

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39). _____________ is a type of waveform coding

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40). __________ is a type of narrow-band coding

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41). How many types of redundancies are there?

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42). _________ are the common techniques based on the redundancy detection method

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43). The discrete-time signals are categorized into __________

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44). There are _________ types of infinite length sequences are there

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45). The discrete-time systems are categorized into ________

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46). What are the limitations of digital signal processing?

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47). The signal ___________ are the uses of filters

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48). How many types of digital filters are there?

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49). _____ is a 16-bit fixed-point arithmetic DSP processor

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50). _____ is a 32-bit fixed-point arithmetic DSP processor

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Digital Signal Processing MCQs for Students

51). The noise power spectral density is equal to _________

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52). _________ are the applications of multi-rate digital signal processing

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53). The advantages of the multi-rate digital signal processing are ___________

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54). Which system requires infinite memory?

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55). The number of computations is _________ in the FIR filter

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56). The _________ filters don’t use feedback

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57). Which filter requires high-performance ADC, DSP, and DAC?

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58). The gain of the maximum pass band is ____________

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59). The gain of the ideal pass band is ____________

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Read more about Band Pass Filters
60). The gain of the maximum stopband is ____________

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61). In which filter the ripples are in the passband and stop band?

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62). _______ are the commonly used analog filters

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63). Which technique is used to design an IIR filter?

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64). Which signal is non-periodic?

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65). The Z-transform of δ[n] is ________

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66). The Z-transform of U[n] is _________

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67). The time domain of linearity is expressed as __________

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68). The S-domain of differentiation is expressed as _______

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69). The time domain of frequency differentiation is expressed as ______

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70). The S-domain of linearity is expressed as ______

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71). The S-domain of frequency shifting is expressed as ______

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72). The S-domain of integration is expressed as ______

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73). The time domain of frequency integration is expressed as ______

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74). The time domain of time scaling is expressed as ______

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75). The time domain of time shifting is expressed as ______

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Digital Signal Processing MCQs for Exams

76). The S-domain of convolution is expressed as ______

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77). The time domain of the cross-correlation is given as _____

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78). The bit size of DSP uniprocessor based TMS32010 is _______

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79). The clock speed of DSP processor TMS32010 is _______

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80). The instruction throughput of DSP processor TMS32010 is _______

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81). The MAC execution of DSP processor TMS32010 is _______

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82). ____________ are the applications of beamforming

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83). The frequency of HDTV signal for FIR filtering is ______

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84). The frequency of TV signal for FIR filtering is ______

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85). The frequency of video phone for FIR filtering is ______

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86). Which one is harvard architecture?

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Read more about Harvard Architecture
87). The F(ω) form of δ(t) is _______

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88). The F(f) form of signal Arect(t/T) is _______

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89). The F(ω) form of signal Arect(t/T) is _________

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90). The F(f) form of signal sinc(t) is ______

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91). The ROC of signal u(t) is ________

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92). For steady-state analysis _______ transform is used

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93). The bit size of TM320C30 DSP processor is _______

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94). The clock speed of DSP processor TMS320C30 is _______

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95). The instruction throughput of DSP processor TMS320C30 is _______

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96). The MAC execution of DSP processor TMS320C30 is _______

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97). ________ are the applications of echo cancellation

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98). The frequency of music for FIR filtering is _____

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99). The F(ω) form of signal sinc(t) is ___________

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100). The F(ω) form of constant A is ___________

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Digital Signal Processing MCQs

101). For transient signal analysis ___________ transform is used

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102). The input of the discrete-time Fourier transform is ___________

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103). The input of the discrete Fourier transform is ___________

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104). In Fourier transform the range of ω is ________

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105). The F(f) form of signal sgn(t) is _______

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106). The F(ω) form of signal sgn(t) is _______

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107). The F(f) form of constant A is _______

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108). The F(f) form of signal u(t) is ______

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109). The range of ω in discrete Fourier transform is _____

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110). The Z transform of au(n) is ______

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111). The spatial domain of scaling is ____

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112). The spatial domain of the symmetry is ____

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113). The frequency-domain of symmetry is ____

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114). The frequency domain of convolution is ____

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115). The F(ω) form of u(t) signal is __________

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116). Which one is a mathematical tool?

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117). Which one is mainly used for periodic signals?

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118). The conditions for existence of Fourier transform are ___________

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119). The signal can be a function of ___________

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120). Which one is mainly used for aperiodic signals?

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121). ______ is an example of modern conventional DSP

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122). ______ is an example of modern enhanced DSP

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123). ______ is an example of multiple issue DSP

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124). Which one is a superscalar DSP?

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125). ________ systems cannot implement linear phase filtering

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Digital Signal Processing MCQs for Quiz

126). In which filter the poles lie on the circle in the s-plane?

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127). In which filter the inductors are present?

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128). ______ are the applications of analog filters

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129). The digital systems are _________

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130). _______ are the applications of digital filters

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131). The frequency range of discrete active RC filters is from ______

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132). The frequency range of switched-capacitor filters is from ______

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133). The frequency range of passive RLC filters is from ______

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134). The frequency range of integrated RC filters is from ______

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135). _____ are the examples of singularities

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136). The frequency range of microwave filters is from ______

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137). ______ are used in Butterworth filter

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138). Which filter requires more hardware?

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139). Butterworth filters are used in _______

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140). The interface between the digital processor and an analog signal is _______

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141). The discrete-time Fourier transform is the representation of ______ time signals representation

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142). The fast Fourier transform used to calculate ______

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143). The Chebyshev filters have a _____________

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144). The elliptical filters have ________________

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145). The function of one dimension signal is _______ variable

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146). ____________ is the process of down sampling

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147). Discrete Fourier transform applied to ________ sequences

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148). Correlation is used for ____________

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149). What is the standard form of DPCM?

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150). What is the standard form of DM?

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Digital Signal Processing Important MCQs with Hints

151). In delta modulation, the quantizer is a _____ bit quantizer

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Read more about Delta Modulation
152). _________ order predictor is used in delta modulation

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153). ____________ uses quadrature mirror filters

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154). The function f(t)=f(-t) is a ________ function

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155). To convert digital filter specifications to analog filter specifications in bilinear transformation design method for IIR filter will use _________

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156). Once the analog filter specifications are obtained in bilinear transformation design for IIR filter design then the analog filter specifications transformed into ________

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157). The function f(-t)=-f(t) is a ___________ symmetry

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158). In bilinear transformation design method for IIR filter, an analog filter specifications transformed into analog filter transfer function by using ________

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159). In bilinear transformation design method for IIR filter, an analog filter transfer function converted into digital filter transfer function by using ________

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160). The advantage of using floating-point processors is to _______

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161). The function f(t-T/2)=-f(t) is a ______ symmetry

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162). The floating-point digital signal processor performs _________ signal processing operations

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163). The TMS320C3X floating-point DSP processor includes ______

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164). The TMS320C3X supports __________ floating-point formats

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165). The TMS320C3X floating-point DSP processor supports 16-bit floating-point format has _______

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166). The TMS320C3X floating-point DSP processor supports 32-bit floating-point format has _______

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167). The TMS320C3X floating-point DSP processor supports 40-bit floating-point format has _______

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168). TMS320C54 family processor supports _________

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169). The TMS320C54X family processors, the on-chip program memory, and data memory includes _______

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170). The RAM and ROM in the TMS32C54X family processor used for _______

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171). The TMS32C54X family processor has _________

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172). The TMS32C54X family processor has _________ shift units

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173). The shift unit in the TMS32C54X processor performs __________

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174). The 8-bit exponent in single-precision floating point will range from _________

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175). The double-precision floating-point representation requires _______

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176). The design of general microprocessor and microcontroller is based on _________

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177). __________ tells the CPU what to do

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178). ___________ informs the CPU what data to operate on

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179). The ___________ phase filters are used to prevent the input shape of the signals?

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180). If we apply DTFT to h(n) will get ______

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181). IIR filter output y(n) depends on _______

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182). IIR filter offers a ______

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183). The IIR filter design main objective is to determine the filter ______

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184). The IIR filters are ____

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185). ______ are the DSP hardware units

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186). The impulse response of a symmetric linear phase finite impulse response filter can be represented as _______

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187). What is the standard form of DIT?

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