Patent ID: 8698670
Filing Date: 2014-04-15
Classification: G01S

Abstract:
1. An analog correlator for use in a radar sensor having a transmitter for transmitting a pulse compression radar (PCR) signal having a PCR pulse and a receiver for receiving a reflected PCR signal, the analog correlator comprising: a replica generator for generating a template signal having a plurality of replicated PCR pulses replicating the PCR pulse of the transmitted PCR signal, the plurality of replicated PCR pulses generated at a replication rate having an adjustable time delay relative to the transmitted PCR signal; a multiplier for multiplying the received PCR signal with the plurality of replicated PCR pulses of the template signal; and an integrator module coupled to the multiplier, and configured to generate a plurality of analog correlation signals, each having a magnitude based on the multiplying between the received PCR signal and one of the plurality of replicated PCR pulses of the template signal.