A Coherent Integration Method for Moving Target Detection in a Parameter Jittering Radar System Based on Signum Coding
Penghui Huang, Xiang‐Gen Xia, Lingyu Wang, Xingzhao Liu, Guisheng Liao
Abstract
In this paper, we propose a novel long-time coherent integration detection method to detect an uncooperative moving target in a frequency and pulse repetition interval randomly jittering radar system based on signum coding (SC). In the proposed algorithm, an additional reference waveform is applied to eliminate the third-order harmonic influence induced by SC. Then, a generalized Keystone transform (GKT) is proposed to resolve the complex coupling among the range frequency, jittered carrier frequency, and nonuniformly sampled time. Simulation results are presented to validate the effectiveness and feasibility of the proposed method.
Topics & Concepts
RadarComputer scienceWaveformCoding (social sciences)Time–frequency analysisRadar systemsHarmonicRadar detectionFrequency modulationRange (aeronautics)AlgorithmComputer visionArtificial intelligenceElectronic engineeringBandwidth (computing)AcousticsMathematicsTelecommunicationsEngineeringPhysicsStatisticsAerospace engineeringAdvanced SAR Imaging TechniquesRadar Systems and Signal ProcessingWireless Signal Modulation Classification