Initial synchronization in spread spectrum receiver

Details Initial synchronization in spread spectrum receiver Initial synchronization in spread spectrum receiver

1988-09-01

1990-06-12

Cangialosi, Salvatore

Pulse or digital communications

Repeaters

Testing

H04K 100

Patent

active

049339532

ABSTRACT:
An initial synchronization system for spread spectrum communication including a despreader-demodulator circuit for despreading and demodulating an input signal according to a despread control signal, a decoder circuit for decoding a data signal demodulated by the despreader-demodulator circuit and outputting a code synchronization signal when code synchronization is taken, a correlation detector circuit in response to the input signal for detecting the correlation of the input signal and generating the despread control signal and a correlation detection signal, and a control circuit for outputting an initial synchronization start signal to the correlation detector circuit so as to cause the correlation detector circuit to start the initial synchronization if the code synchronization signal is not generated within a predetermined period after the correlation detection signal was generated.

REFERENCES:
patent: 4121159 (1978-10-01), Lampert
patent: 4351064 (1982-09-01), Ewanus
patent: 4752939 (1988-06-01), Amoroso et al.

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