Low, slow and small target detection method based on FDA-MIMO radar
A low-slow and small target detection method technology, which is applied in the field of radar low-slow and small target detection, can solve the problems of small target radar scattering cross-sectional area, air defense system threat, and low flight altitude, achieving remarkable detection effect, suppressing influence, and estimating accurate effect
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[0044] A low-slow and small target detection method based on FDA-MIMO radar, including the following steps:
[0045] 1) Establish a frequency diversity array with multiple transmitters and multiple receivers perpendicular to the ground, and obtain FDA-MIMO radar direct-direct, direct-reflection echo signal models, and construct the echo observation data matrix Y, where direct-direct echo represents transmission After the transmitted wave of the array element reaches the target directly, it is reflected by the target and reaches the echo of the receiving array element; the direct-reflected echo means that after the transmitted wave of the transmitting array element reaches the target, it is reflected by the target and reflected on the ground to reach the receiving array element. wave;
[0046] Such as figure 1 As shown, it is a uniform linear array with N transceiver elements, forming an N×N FDA-MIMO structure, the elements are vertically distributed, the spacing ...
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