Compression spatial spectrum-based single base MIMO (Multiple Input Multiple Output) radar target DOA (Direction of Arrival) estimation method
A technology of direction of arrival estimation and space compression, applied in the field of radar, which can solve problems such as high computational complexity, joint search, and inability to meet the needs of real-time signal processing.
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[0046] Below in conjunction with accompanying drawing, technical scheme of the present invention is further elaborated:
[0047] Step 1: Establish a receiving signal model of the monostatic MIMO radar, and design a dimensionality reduction matrix to perform dimensionality reduction processing on the received data.
[0048] Consider a monostatic MIMO radar consisting of M transmitting antennas and N receiving antennas, and its transmitting array and receiving array are both uniform linear arrays with an array element distance of half a wavelength. In monostatic MIMO radar, considering that the transmitting array and the receiving array are closely arranged together, the direction of arrival of the target relative to the transmitting array and the receiving array is the same, which is uniformly recorded as the direction of arrival (Direction Of Arrival, DOA) of the target. ). At the transmitting end of the MIMO radar, the transmitting array transmits a set of orthogonal narrowb...
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