DSP

RRC filter
hi all, I am interested in design of RRC filter. i need basic theory of it and RTL description. finally i am interested to implement it on FPGA. Regards J.R.Godara ... 4 Sep 2006 10:02

Calculating a
>LM wrote: Hi All, I?m wondering if there is some way to save processing time when you want only a subset of the data from an IFFT. ... It depends on the size or the subset. It is cheaper to calculate one point directly than to do the entire FFT. The size of the subset where the old... 3 Sep 2006 13:27

Interefence...?
Hi all, if two high power electronic communication devices placed closed (wonderinf the definition of near now...?) and they are frequency separated by about 1GHz. How can I access the potential interference, burnout or saturation that will occur or will it occur? Thanks. Ralph ... 4 Sep 2006 09:30

Problem running the examples on EVMDM642 board
Dear Experts, I am having problems running the examples provided with the EVMDM642 board together with the USB XDS510 JTAG emulator. I tried to run the executables as it came with the product and I already tried to compile the examples under CC 3.1 (with no errors), but in either cases every time I run an exampl... 30 Aug 2006 06:21

jointly gaussian
Can somebody please help me with this question: can a bivariate normal distribution be only made up of 2 random variables with normal distribution (and independent of each other)? In other words can two random variables with some distribution other than normal give rise to a jointly normal distribution? Or is ... 29 Aug 2006 15:31

Coherent averaging
Hi all, we are dealing with N synchronous measures of a spatial signal corrupted with a non-zero mean noise. Those measures are mutually uncorrelated. Is it feasible to extract the signal using coherent averaging? We have a reasonable model of the signal pattern (but not of the signal peak to peak). Can we us... 31 Aug 2006 17:10

Help with a aplitude respons?
Im looking at an aplitude response of an ADC fr?n Linear Technologies, LTC2440 (Figure 11 on page 19 in the data sheet). http://www.linear.com/pc/downloadDocument.do?navId=H0,C1,C1155,C1001,C1152,P1771,D3135 The deep notches seems to come from a Sinc4 filter, but where are the other smaller notches comming fr... 12 Sep 2006 06:52

Nyquist Didn't Say That
Kinda off topic -- A month or two ago there was a spate of postings on these groups displaying a profound misunderstanding of how to apply Nyquist's theorem to problems of setting sampling or designing anti-alias filters. I helped folks out as much as I could, but it really demands an article, which I am cu... 29 Aug 2006 14:27

FFSK simple implementation
Hi, I would some easy way of decoding/demodulating a FFSK signal at 1200 bits per second consisting of theese tones 1200 Hz one cycle 1800 Hz one and a halv cycle using some DSP algorithm in software (for example using a soundcard and Windows / Linux) etc. Any one feel like pointing me in the right dir... 23 Aug 2006 02:34

Trying to implement FFT
Hi I'm currently trying to implement an FFT-algorithm in C++. As it stands right now, it gives me the correct result, but it is slightly slower than the O(N^2)-algorithm that i have also written. So there must be something that I'm missing. Here's an outline of the two algorithms: DFT (N samples): Make t... 24 Aug 2006 14:47