radio913's articles:

Items(7) /1

Additive White Gaussian Noise Question 34 24 (10/4/2007 11:33:55 PM) comp.dsp My understanding is that when you add AWGN to a carrier, you make the amplitude a gaussian distribution, and then add white noise to this (not really pure white noise, but as high a BW as your simulation can ha... Necronomicon

Another Eb/No Question 13 20 (10/2/2007 6:21:28 PM) comp.dsp Does Eb/No, as used in digital communication calculations for signal to noise ratios, take into account the VCO/PLL/Reference phase noise of the carrier(s)? I ask because the phase noise is never really flat, ... Necronomicon

BIN SPLITTING and MIXED RADIX FFT? 5 28 (9/27/2007 11:24:26 PM) comp.dsp Sorry if these are newbie questions, but can anyone give me good descriptions of these? The bin splitting is obviously related to the samples per second, the sampling time, and the frequency resolution. It s... Necronomicon

Fourier Transform (spectrum) of QPSK and BPSK? 23 19 (11/12/2006 8:48:00 AM) comp.dsp Hi All, Does anyone have a mathematical derivation of the expected spectrum of a QPSK signal, given a known symbol rate (which is 1/2 the data rate for QPSK)? The signal i am measuring doesn'... radio913

Fourier Transform Question for Pulsed CW and 802.11b DSSS 6 41 (10/31/2005 3:13:24 AM) comp.dsp Hi, It's well known in the radio frequency community that the Fourier Transform of a pulsed CW signal is the (sinx)/x function, aka as the sinc function, with the spacing of the frequencies being equal to ... radio913

FM INDEX OF MODULATION QUESTION 3 30 (10/11/2005 4:48:54 AM) comp.dsp Hi, It's recently come to my attention that the FM index of modulation is also the peak phase deviation in radians. This was in regards to a question about the linear region of phase/frequency detector. ... radio913

OFDM FFT 802.11a/g QUESTION ~~~~~~~~~~~~~~~~~~~~ 64 26 (5/2/2005 6:43:41 AM) comp.dsp Hi, I'm somewhat of a newbie to the whole orthogonal frequency division multiplexed world, having come from the GSM, DCS, PCS, and broadcast band power amplifier worlds, as well as some 2-18 GHz DLVA work.... radio913

radio913's replies:

Items(8) /1

OFDM FFT 802.11a/g QUESTION ~~~~~~~~~~~~~~~~~~~~ 64 26 (5/2/2005 6:43:41 AM) comp.dsp Hi, I'm somewhat of a newbie to the whole orthogonal frequency division multiplexed world, having come from the GSM, DCS, PCS, and broadcast band power amplifier worlds, as well as some 2-18 GHz DLVA work.... radio913 (42)

FM INDEX OF MODULATION QUESTION 3 30 (10/11/2005 4:48:54 AM) comp.dsp Hi, It's recently come to my attention that the FM index of modulation is also the peak phase deviation in radians. This was in regards to a question about the linear region of phase/frequency detector. ... radio913 (42)

Fourier Transform Question for Pulsed CW and 802.11b DSSS 6 41 (10/31/2005 3:13:24 AM) comp.dsp Hi, It's well known in the radio frequency community that the Fourier Transform of a pulsed CW signal is the (sinx)/x function, aka as the sinc function, with the spacing of the frequencies being equal to ... radio913 (42)

Fourier Transform (spectrum) of QPSK and BPSK? 23 19 (11/12/2006 8:48:00 AM) comp.dsp Hi All, Does anyone have a mathematical derivation of the expected spectrum of a QPSK signal, given a known symbol rate (which is 1/2 the data rate for QPSK)? The signal i am measuring doesn'... radio913 (42)

spherical isotropic noise? 14 25 (12/16/2006 3:29:12 AM) comp.dsp Dear all, Just read a paper and I am not sure what 'spherical isotroic noise' is? How can I simulate it in array processing? Should I treat it as a white noise in the near field of an array? Thanks, L. N. ... linsnail2 (23)

BIN SPLITTING and MIXED RADIX FFT? 5 28 (9/27/2007 11:24:26 PM) comp.dsp Sorry if these are newbie questions, but can anyone give me good descriptions of these? The bin splitting is obviously related to the samples per second, the sampling time, and the frequency resolution. It s... radio913 (42)

Another Eb/No Question 13 20 (10/2/2007 6:21:28 PM) comp.dsp Does Eb/No, as used in digital communication calculations for signal to noise ratios, take into account the VCO/PLL/Reference phase noise of the carrier(s)? I ask because the phase noise is never really flat, ... radio913 (42)

Additive White Gaussian Noise Question 34 24 (10/4/2007 11:33:55 PM) comp.dsp My understanding is that when you add AWGN to a carrier, you make the amplitude a gaussian distribution, and then add white noise to this (not really pure white noise, but as high a BW as your simulation can ha... radio913 (42)