Self-adaptive sampling method based on multiple sequential-filtering interaction-type models
An interactive multi-model, adaptive sampling technique used in the reflection/re-radiation of radio waves, radio wave measurement systems, instruments, etc.
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[0085] In this implementation scheme, a Doppler radar is considered to track a maneuvering moving target in a two-dimensional plane. Assuming that the target initial value position is x=6000m, y=5000m, set v x =350m / s,v y = 0m / s is the initial speed, perform uniform motion between 1~60s, 75~100s and 115~200s respectively, and uniformly accelerate motion at 60~75s and 100~115s, when 60~75s, the acceleration in two directions Respectively: a x =-23m / s 2 ,a y =-25m / s 2 ;The accelerations in the two directions at 100~115s are respectively: 24m / s 2 ,a y =25m / s 2 . The statistical characteristics of measurement noise are described by the standard deviation of azimuth, distance and radial velocity in the polar coordinate system, and the set of sampling periods is T se ={0.1,0.2,...,2.5}, the ASP-SQ-IMM algorithm is used to track the target, the model set is composed of uniform velocity motion (CV) and uniform acceleration motion (CA) models, and the initial probability of ea...
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