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Polynomial Codes, where is my mistake? [24 articles]

So, I needed to generate a bunch of different length sequences, and thought that the easiest way would be to use a code in an LFSR. I couldn't find any handy tables of polynomials (I know they're...

Sub-sequence indices for computing FFT cross-correlation between two long sequences [7 articles]

Hello, I need to compute the cross-correlation between two signals x[n] and y[n]. For example, signal x[n] has a length of 3441534 and signal y[n] has a length of 3441528. I only need the cro...

Nature of Heavenly Bodies

THE QUR'AN AND MODERN SCIENCE Extracted from the Book The Bible, The Qur'an and Science Maurice Bucaille ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Nature of Heavenly Bodies THE SUN AND THE MOON The Sun...

Processing Delay through a multi-rate filter [5 articles]

Hi, I am trying to understand the delay through a multi-rate filter. Consider a hypothetical decimate-by-10 filter with 11 real and symmetric taps. I would think that the processing delay for such ...

How many Fourier Coefficents are Needed to Synthesize a signal? [19 articles]

I was looking an algorithm to calculate fourier coefficents and update them at every new input sample, the Sliding Goertzel algorithm. This one seems to give both an estimate of the amplitude AND ...

IEEE 802.11a OFDM symbol problem [4 articles]

Hi, I'm trying to implement physical layer of IEEE's 802.11a WLAN standard (http://standards.ieee.org/getieee802/download/802.11a-1999.pdf). Currently I'm getting everything corresponding to standa...

Discrete high-pass Butterworth filter design rules [13 articles]

Some time ago I've programmed a 2'nd order Butterworth High-Pass filter using the tool: http://www-users.cs.york.ac.uk/~fisher/mkfilter/trad.html. I noticed it always generated filters which transfer ...

SNR of high sensitivity professional camera [3 articles]

Hello friends, I am thinking about a measurement method of 16-bit/color pixel video camera noise. I am afraid, that the light source noise of test images may be higher than sensor noise, so the...

Simple convolution and fft [12 articles]

Suppose I have A -------------------------------------- 10.000 10.000 B -------------------------------------- 10.000 10.000 and C -------------------------------------- ...

Ogg/Vorbis on a dsPic [17 articles]

Has anyone worked with Ogg/Vorbis on a dsPIC ?? Which model of dsPIC did you need to use to get reasonable stereo sound out of it ?? That is, if its possible at all. Thanks hamilton ...