Code covered by the BSD License  

Highlights from
MatLab Solutions: "Introduction to Digital Signal Processing: A Computer Laboratory Textbook".

• AD_DA(x,Xmin,Xmax,Levels) This function represents an A/D converter in series with a D/A converter
• conv_DHT(x,h) Linear Convolution calculated via the Discrete Hartley Transform (DHT).
• diffft(x) Decimation-In-Frequency (DIF) FFT.
• fastconv(x,y) Compute a linear (or circular, depending on relative signal lengths) convolution via DFT's.
• fastconv2(x,y) Compute a linear convolution via DFT's.
• fastconv3(x,y,nx,ny) Compute a linear convolution via DFT's.
• fft241(x,y) This function calculates the DFT's of two real N-point sequences, by means of
• fftreal(x) This function calculates the FFT of an N-point real signal x[n] by use
• fraction_delay(x, h, N) This function induces a fractional sample delay by 1/N to the input signal x.
• fraction_delay2(x, h, N) This is a later version of custom function fraction_delay.m
• fraction_sample(x,h,M,N) Fractional Sampling Rate Conversion function by a factor of M/N.
• ifft241(X,Y) This function calculates the IDFT's of 2 given complex DFT sequences of common length N,
• ifftreal(X) This function computes the ifft of an N-point complex DFT sequence which corresponds
• ifftreal2(X) This function computes the ifft of an N-point complex DFT sequence which corresponds
• method2_idft(X)
• method3_idft(X)
• my_CTFT(x,dt,freq_type) Continuous Time Fourier Transform Approximation.
• my_CZT(x,M,W,A) Fast chirp z-transform (CZT) computation.
• my_Co_IDCT(X) Inverse Discrete Cosine Transform Computation.
• my_DCT(x) Discrete Cosine Transform Computation.
• my_DCT_2D(X) Two-dimensional DCT computation.
• my_DFT(x) This function calculates the DFT of the input signal x.
• my_DFT2(x) Direct DFT Computation using the definition formula.
• my_DHT(x) This function calculates the Discrete Hartley Transform of a real
• my_DHT2(x,time_ind) This function calculates the Discrete Hartley Transform of a real
• my_DTFT(x,n) DTFT Computation using the definition formula.
• my_DTFT2(x,n,w) DTFT Computation using the definition formula.
• my_DTFT3(x,n1) DTFT Computation using the definition formula.
• my_FFT_2D(X) Two-dimensional DFT computation.
• my_IDCT(X) Inverse Discrete Cosine Transform Computation.
• my_IDCT_2D(X) Two-dimensional Inverse DCT computation.
• my_IDFT(X) This function calculates the Inverse DFT of the input signal X.
• my_IFFT_2D(X) Two-dimensional Inverse FFT computation.
• my_Re_IDCT(X) Discrete Cosine Transform Computation.
• my_conv(x,h,nx,nh) This function computes the linear convolution of input signals x[n] and h[n].
• my_conv2(x,h,nx,nh) This function computes the linear convolution of input signals x[n] and h[n].
• my_downsample(x,M) This function performs downsampling to input row vector x
• my_spectrogram(x,Fs,N,M,win_t... This function calculates the spectrogram of the input signal x.
• my_upsample(x,N) This function performs upsampling to input row vector x
• overlap_add(x,h,half_segment_... Linear Convolution computation by use of overlap-and-add method.
• overlap_save(x,h,segment_leng... Linear Convolution computation via the Overlap-and-Save method.
• overlap_save2(x,h,segment_len... Linear Convolution computation via the Overlap-and-Save method. Version 2.
• radix2fft(x) Radix-2, Decimation-In-Time (DIT), FFT Computation function.
• radix4fft(x) Radix-4, Decimation-In-Time (DIT), FFT Computation function.
• shiftdown(x,n) This function shifts down (up) the contents of a column vector
• shiftright(x,n) This function shifts to the right (left) the contents of a row vector
• splitradixfft(x) Split-Radix, Decimation-In-Time (DIT),FFT Computation function.
• uniform_quantizer(x,L,max_lev... This function implements a uniform quantizer of L levels.
• zero_phase_dft(x) This function is an implementation of the "zero phase DFT" of a given
• zero_phase_dtft(x,M) This function is an implementation of the "zero phase DTFT" of a given
• bench_dtft.m
• bench_fft.m
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• spectro_demo.m
• test_fastconv3.m
• test_idct.m
• test_idct2D.m
• test_ifft241.m
• View all files