Interference-detection Module In A Digital Radar Receiver

摘要

A digital receiver in a 1.26-GHz space-borne radar scatterometer now undergoing development includes a module for detecting radio-frequency interference (RFI) that could contam-inate scientific data intended to be acquired by the scatterometer. The role of the RFI-detection module is to identify time intervals during which the received signal is likely to be contaminated by RFI and thereby to enable exclusion, from further scientific data nroressinc of signal data arouiredrnduring those intervals. The underlying concepts of detection of RFI and rejection of RFI-contaminated signal data are also potentially applicable in advanced terrestrial radio receivers, including software-defined radio receivers in general, receivers in cellular telephones and other wireless consumer electronic devices, and receivers in automotive collision-avoidance radar systems.