This paper presents a study of the possibility of improving the
performance of the radar stations that use Linear Frequency
Modulation (LFM) using signals pairs, uplink and downlink, to get
rid of the negative interference signals, with the use of
packet filters
opposite narrow area dedicated to measuring the goal. The output of
these packet filters is connected to subtractor circuit, so the reflected
signals from fixed objects (negative interference) excite filters have
the same arrangement leading to subtracting it, and the reflected
signals from a moving target will vary its frequency value of the
offset Doppler "fd" and thus excite different filters arranged to pass
through the subtraction circuit without being deleted.
