基于二相码的PD雷达解模糊及遮挡方法

doi:10.12305/j.issn.1001-506X.2023.06.10

Abstract

Abstract:

In order to avoid velocity and range ambiguity of binary phase coded pulse Doppler (PD) radar, high pulse repetition frequency (HPRF) working mode is adopted, and the binary phase coded signals with low cross-correlation peak are used between multiple pulses. In the receiver, data rearrangement of echo signals between multiple transmitted pulses is performed, and then pulse compression and moving target detection (MTD) are used to obtain the peak value which can reflect the target speed and target distance without ambiguity. To reduce the blind working area of PD radar, small transmitting pulse time width is adopted, that is, the chip length of two-phase coded signal. To avoid the eclipsing loss of PD radar transmitted pulse, two kinds of HPRF are adopted to transmit orthogonal binary phase coded pulse signals. Simulation results verify that the proposed method is effective and feasible.

Key words: pulse Doppler (PD) radar, binary phase code, range and velocity ambiguity, range eclipse

CLC Number:

TN951

Jihong YAN, Huan ZHANG, Weihan NI, Li YANG, Zishu HE. An unambiguity and range eclipse free method for PD radar using binary phase coded signals[J]. Systems Engineering and Electronics, 2023, 45(6): 1667-1674.

Figures/Tables 14

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An unambiguity and range eclipse free method for PD radar using binary phase coded signals

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