Multi-radiation source direct positioning method based on single unmanned aerial vehicle
A multi-radiation source and positioning method technology, applied in the field of multi-radiation source direct positioning, can solve the problems of limited positioning accuracy and resolution ability, and achieve the effect of facilitating engineering implementation and improving positioning accuracy
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[0091] Example: Setting area S=3500×5000m 2 There is an unmanned aerial vehicle equipped with a uniform linear array of M=5 elements, and there are Q=2 radiation sources in the far-field area of the array. This drone starts from position [-1500, 3000] T (m) starting from west to east with v=[200, 0] T (m / s) moving at a uniform speed, reaching position [900, 3000] after K = 9 sensing time slots T (m). The two radiation sources are located at p 1 =[-1200, 0] T (m) and p 2 =[1000, 0] T (m), transmit center frequency f c =200(MHz), the initial phase is narrowband signal. In addition, other parameters are set as follows: c 1 =c 2 = 1.49445, w = 0.8, N g =40, N p =10, H=100, L=10, N c =1600, ε=1×e -5 , D=1000.
[0092] image 3 and Figure 4 are the root mean square error of positioning and the average relative error of positioning of each algorithm, respectively, which are named as two-step positioning, OWSSF, SF-OWSSF, STF-PSO-AP, and STF-RNN. Let the signal-...
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