Distributed cross-correlation model and experimental study of passive positioning
Jian‐Ping Yue · Ship Science and Technology · 2012
In this paper,the problem of cross-correlation passive positioning with distributed array of long baseline was studied,and positioning model of conventional hyperboloid intersection and location model of hyperboloid iterative search were proposed.Experiment in shallow waters demonstrated that the spatial correlation radius of narrow-band signal reach at least up to 3 000～40 00 m eters.Simulation of channel modeling showed that distributed cross-correlation peak split and caused loss due to the impact of impulse response differences,but testing in shallow waters is an ideal case.The theoretical formula of tolerance of target motion and integration time was given.Trial in shallow waters showed that the trajectory tracking of low-speed target was sound with the two positioning models above.