Quantization multi-narrow beam forming method in the array antenna beam width, quantization multi-narrow beam forming apparatus and a radar system in the array antenna beam width

摘要

A method, an apparatus, and a radar system for forming a quantized multiplex / narrow beam within an array antenna beam width capable of acquiring target information accurately and stably. An output amplitude vector of an array antenna composed of a sum of a signal arrival wave reception output received at an array antenna and a reception system noise output is formed as a real array antenna output vector, and the real array antenna output vector is used. Deriving a singular linear equation that generates a virtual array antenna output amplitude vector that is set so that the power of the signal arrival wave received output and the average power of the receiving system noise output are equivalent to each other. Quantization unit narrow-angle beam that divides the transmission / reception beam width of the incoming wave for each quantization unit angle when deriving the equation, obtaining the signal arrival wave amplitude vector using a regular linear equation, and deriving the singular linear equation A virtual array antenna output amplitude vector is generated so as to include the amplitude of the incoming wave. [Selection] Figure 1