Ultra short baseline positioning method based on underwater acoustic signal Kalman filter

• Main Authors: LUO QING HUA, PENG YU, HAN ZHI HAO, HU CONG, PENG XI YUAN, ZHOU PENG TAI, YANG YI PENG
• Format: Patent
• Language: Chinese; English
• Published: 04.09.2018
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

The invention discloses an ultra short baseline positioning method based on underwater acoustic signal Kalman filter, which relates to a high-precision ultra short baseline underwater positioning method and aims at solving the problem that the positioning precision is low due to noise influences during an underwater acoustic signal propagation process. The ultra short baseline positioning method based on underwater acoustic signal Kalman filter comprises steps: firstly, based on an ultra short baseline triangular matrix, waveforms of three ways of acoustic signals are acquired; corresponding system equations and observation equations are then built, a Kalman filter algorithm is used to carry out noise reduction processing on the signals, and a phase difference between processed signals isacquired; and finally, the acquired phase difference is substituted to a mathematical model of the ultra short baseline positioning system, and a high-precision positioning result is solved. 种基于水声信号卡尔曼滤波的超短基线定位方法，涉及高精度的超短基水下定