Single channel monopulse radar system

Abstract

A single channel monopulse radar system including an antenna for transmitting and receiving pulsed radar signals; an arithmetic matrix for providing a pulsed sum information signal, a pulsed azimuth difference information signal and a pulsed elevation difference information signal in response to the pulsed radar signals transmitted and received by the antenna, wherein said information signals are RF signals; an azimuth phase comparator for comparing the sum signal to the azimuth difference signal to provide an azimuth angle error signal; and an elevation phase comparator for comparing the sum signal to the elevation difference signal to provide an elevation angle error signal. An RF delay line separately delays the pulsed sum and difference information signals so as to provide a multiplexed signal in which the three pulsed information signals appear serially and are closely spaced in time. A mixer converts the multiplexed signal from an RF signal to an IF signal. An IF amplifier amplifies the multiplexed IF signal and an IF delay line having separate output terminals restores the phase relationship between the pulsed sum and difference information signals contained in the amplified, multiplexed, IF signal, and simultaneously provides the restored signals at respective separate output taps to the phase comparators.