Kohärenter Bpsk-Demodulator und Verfahren zur Demodulation eines Signals

Details

Veröffentlichungs-Nr.

EP4800989

Anmeldetag

28. Februar 2025

Veröffentlichung

2. September 2026

Rechtsraum

EP

Abstract

In one aspect the present invention concerns a coherent BPSK demodulator (10) for demodulating an input signal, the demodulator (10) comprising: - an analog signal input (20) to provide an oscillating modulated input signal, - a phase locked loop (12) comprising a phase detector (22), a loop filter (23), a voltage-controlled oscillator (24) and a frequency divider (25), which are connected in series, wherein in a first startup phase of the demodulator (10) the loop filter (23) is configured to become pre-charged in accordance with trimming values obtainable from a digital memory (37), - a frequency estimator (34), which during a second startup phase of the demodulator (10) is operable to determine a frequency offset between a frequency of the input signal and a startup frequency of the voltage controlled oscillator (24), wherein the startup frequency is defined by the trimming values, and which is further operable to adjust the trimming values and the startup frequency to reduce the frequency offset.

Anmelder

Firma

EM Microelectronic-Marin SA

Land

🇨🇭 Schweiz