A complex correlator implementatin of a channelized digital receiver for pulse signal parameter measurements

摘要

Recently,there have bene numerous technical developments and researches on channelized wideband digital receivers for various military electronic warfare applications to enhance the signal parameter measurement accuracy and to reduce the hardware size and cost.in a wideband digital electronic warfare (EW) reciever,post detection integration has been used conventionally instead of pre-detection integration to avoid implementing the large number of bits required by a coherent correlation algorithm.However,recent hardware technology improvemdent enables more comlex and intensive algoirthm.However,recent hardware technology improvedment enables more complex and intensive algorithms such as what is discussed in this paper.this paper presents algorithms to detect pulse signals and measure pulse parameters by a complex correlator and its suitable post processing.An approximate statistical model for the ocmplex correlation functionoutput is derived for the pulse signal deteciton under white Gaussian noise.Algorithm concpets of pulse paameter measure ments are investigated.Algorithm results of the parameter measureemtn accuracy verses SNR for various signal types are also presented in this paper.