DSP
in [Hardware]
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What is the most effective way to do a zoom FFT Hi. I'm working in a FFT project, and I need to do a zoom in a FFT. Do you know what is the most effective way to do a zoom FFT. Do you have a code to do it? Thank you? Diego ... 3 Jul 2005 22:26
90 degrees phase shift Hi, I'm an hold analog engineer , actually developing a DSP based application and I need to change of 90 degrees the phase of a signal on the range of 50 - 250 Hz aving the system a 200uSec sampling rate. I have considered the Hilbert FIR filter but for the moment I cannot get it to work not even reducing the samp... 3 Jul 2005 21:55
Who Invented the Z Transform It's pretty easy to figure out who was responsible for the Fourier transform, ditto for the Laplace. Does anybody out there know who dreamed up the z transform (Please tell me it wasn't someone named 'Z')? ------------------------------------------- Tim Wescott Wescott Design Services http://www.wescottdes... 8 Aug 2005 19:21
cross correlation Hi expert, I used xcorr to calculate cross correlation in matlab, i tried to do the same thing by using fft, so : i have 2 signals x, y L=max(lenght(x), lenght(y)) xx=fft(x,2*L). yy=fft(y,2*L). Sxy=xx.*conj(y); rxy=fftshift(real(ifft(Sxy))) ; Rxy is my cross correlation,the problem is when i drawed rxy and xc... 4 Jul 2005 10:40
DC offset removal through FPGA Hi, we are reading an ADC o/p through FPGA. To remove the DC Offset present in the ADC input we have a DAC which can remove this DC offset using a subtractor before the actual analog input (with added DC offset) goes to ADC. Now I want my FPGA to calculate the DC offset from ADC outputs and then feed this val... 3 Jul 2005 22:26
SHARC debug I'm having a hard time trying to find documentation on how to use SHARC's JTAG port for debugging. I'm evaluating the ADSP-21363. Do I have access do all internal memory. What are the commands to do it? How so set a break point? Can I check for memory invasion? What's the tranfer rate (for reading/writing the int... 24 Jun 2005 15:28
waterfilling for single user ofdm Hi, i'm trying to simulate waterfilling for single user ofdm in matlab. i can't seem to find any reference on this topic as most papers deal with multiuser or multiple access ofdm system. Papers which mentioned watefilling for single user ofdm stopped short at providing simply the formula and not the implementat... 10 Jun 2005 16:30
Configure EClkOut Hi, I used C6713 in my filter project. CCStudio IDE can be entered. However, I cannot load the code to the target SDRAM. The error messages are "Data verification failed at address 0x8000E400. Please verify target memory and memory map." "Data verification failed at address ......... Please verify target mem... 8 Jun 2005 09:44
Matlab arrays to C code Hi! How can I c+p matlab arrays (very large) to c code? Can I write it to some file in matlab? Like: in matlab --- S=[1 2 3 4 5;2 3 4 5 6] S = 1 2 3 4 5 2 3 4 5 6 --- In c: --- int S[2][5] ={ {1, 2, 3, 4, 5}, {2, 3, 4, 5, 6} }; --- If I c+p d... 17 Mar 2005 14:25
Matlab for Dummies Hi there, does anybody know, how to call a matlab function outside the current directory, i.e. something like [a,v]= ..\otherdirectory\function(b,d) Hope to get some help. This message was sent using the Comp.DSP web interface on www.DSPRelated.com ... 9 Mar 2005 20:00 |