发明名称 |
Multiple frequency synthetic aperture sonar |
摘要 |
A dual frequency, synthetic aperture, sonar system includes a transmitter for projecting insonifying pings alternatively at first and second frequencies and a linear receiving array carried by a vehicle so as to receive returns from said pings. The first and second frequency returns are separated and subjected to processing in parallel channels where they are resolved into in-phase and quadrature components for subsequent phase-error correction, coherent addition, and synthetic aperture beamforming.
|
申请公布号 |
US4953143(A) |
申请公布日期 |
1990.08.28 |
申请号 |
US19810237352 |
申请日期 |
1981.01.12 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY |
发明人 |
HIGGINS, FRANCIS J.;LOGGINS, JR., CHESTER D.;CHRISTOFF, JAMES T. |
分类号 |
G01S15/10;G01S15/89 |
主分类号 |
G01S15/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|