In synthetic aperture sonar imaging, the residualphaseerror is mainly corrected via autofocus.
合成孔径声呐成像中,主要通过自聚焦校正剩余相位误差。
2
The phase balance of the central frequency can ensure the accuracy of the correlation phase, and the residualphaseerror will only reduce the coherency.
实现信道中心频率的相位精度就可以保证干涉相位的精度,而通道内的残余相位差只会引起干涉相关度的降低。
3
With this method, the time delay is estimated firstly, then the residualphaseerror. Through this way the movement error range that can be compensated by this algorithm is extended.