Two-dimensional angle estimation method for low-complexity space target of l-type array mimo radar
A low-complexity, two-dimensional angle technology, which is applied in the field of rapid estimation of two-dimensional angles of space targets, can solve the problems of large amount of calculation and unfavorable real-time processing of radar systems, and achieve two-dimensional positioning, which is conducive to real-time processing and reduces calculation effect of complexity
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[0054]The present invention is described in more detail below in conjunction with accompanying drawing example:
[0055] combine Figure 1-7 , 1. Deduce the relationship between the joint steering vector of the target echo signal and the equivalent virtual array steering vector after the L-array MIMO radar matched filter
[0056] Such as figure 2 As shown in , the L-array MIMO radar is composed of two vertical half-wavelength uniform linear arrays with M and N co-located omnidirectional array elements, and its equivalent virtual array is a virtual array with 2M-1 and 2N-1 The L-shaped array and a (M-1)(N-1)-dimensional rectangular array. The steering vector of the target echo signal after matched filtering is
[0057]
[0058] in, Indicates the kronecker product, (·) T represents the matrix transpose operation,
[0059]
[0060]
[0061] The steering vector of the equivalent virtual array is
[0062]
[0063] in,
[0064]
[0065] represented by a x...
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