Spread spectrum demodulator

Details Spread spectrum demodulator Spread spectrum demodulator

H - Electricity

04

B

325/28

H04B 1/62 (2006.01) H04B 7/216 (2006.01)

Patent

CA 1063677

ABSTRACT OF THE DISCLOSURE Demodulation of a wideband spread spectrum four-phase PSK (phase shift keyed) modulated carrier signal is accomplished by means of a correlator which phase shifts the modulated carrier signal as a function of a locally generated PN (pseudo-noise) sequence to provide a narrow band two-phase PSK modulated carrier signal. The two-phase modulated signal is fed to a matched filter wherein undesired signal components are removed so as to provide an IF (intermediate frequency) signal. A carrier re- covery phaselock loop demodulates the two phase modulated IF signal to provide a baseband signal. A timing recovery loop operates upon the baseband signal to provide timing signals for the locally generated PN sequence to synchronize the local PN sequence with the modulated carrier sequence. A bit timing loop and a sample and hold means operate upon the baseband signal to detect the modulating data to provide an output signal which is a function of the modulating data.

259770

Affiliated with

Also associated with

Rating

Spread spectrum demodulator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Spread spectrum demodulator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spread spectrum demodulator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-787556