DSP
in [Hardware]
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Decimation filter: Output magnitude response I have a decimation filter which decimates by 100. Input sampling frequency fclk1 = 1.6MHz, Output Sampling freq flck2 = 16kHz. I am trying to plot the input and output frequency responses. For the input, I use fft function in matlab, and get the magnitudes of my frequency response. To generate the plot X... 6 Jul 2010 15:34
Data Backup Most backup software programs data offer some form of data . Filtering allows you to filter certain types of files for backup. For example, you can select to backup all of the images in your hard drive- giving you the freedom to refine your data backup in ways that best suit your needs. This tool is also availab... 1 Jul 2010 08:50
Data Backup Most backup software programs data offer some form of data . Filtering allows you to filter certain types of files for backup. For example, you can select to backup all of the images in your hard drive- giving you the freedom to refine your data backup in ways that best suit your needs. This tool is also availab... 1 Jul 2010 08:50
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Filter design with 'freqsamp' method? I'm new to Matlab, so this is probably a really dumb question. I'm trying to design an FIR where I can set the points. I want a symmetric FIR. I'm assuming that an N tap FIR gives me N/2 degrees of freedom for an even number of taps, and (N + 1)/2 degrees of freedom for an odd number of taps. This should allow me... 5 Jul 2010 16:38
Definition of modulation index for shaped FSK I have a pretty elementary question. For an unshaped, 2-FSK signal, the modulation index h is defined as the ratio of the difference between the two tone frequencies to the symbol rate. For shaped 2-FSK, how is h usually defined? I can think of a few possibilities: (1) Base it on the peak frequency excursi... 30 Jun 2010 19:48
ZSR and ZIR responses.... Hello Forum given a LTI system, I want to make sure I understand the meaning of "zero state response" and "zero input response". The ZSR is the impulse response only existing if a system is acted upon by an external force. That assume that if there is not external force the system does nothing. The ZIR is th... 2 Jul 2010 20:08
Mixing different length FFTs Hello, I'm doing some audio processing in the frequency domain. I have a 2048 and a 512 FFT running parallel (overlap and add) and they have been nulled so that the larger FFT runs from 0 to 3Khz and the smaller one from 3Khz to 44.1Khz. SR = 44.1Khz. When I add the output of these two, I get a dip at the frequ... 1 Jul 2010 09:56
64 x 64 FFT algorithm for 4096 pt. FFT Hi, I am looking for an FFT algorithm that can give me a 4096 pt. FFT using two 64 pt. FFTs. Is it the mixed radix FFT? Thank you. ... 11 Jul 2010 07:12
Multipath channel and downsampling Hi, I'm simulating an MSK based transmission system in Matlab. At the TX, I generate the signal with 4 samples per symbol. It is then passed to a rician channel + AWGN. At the receiver, after removing the channel delay, I downsample so that to have 1 sample per symbol. The resulting signal is equalized and demodu... 30 Jun 2010 13:05 |