然而，当目标位置的互距离测量误差比较大时，CMKF的性能将急剧下降。

However, it has been found that the performance of CMKF degrades considerably when cross-range measurement errors of the target position are large.

youdao

而是存在一个不小的概率椭圆误差区域，因而无法精确确定被测目标的真实位置。

Moreover, there is still a large error area of probability ellipse, which makes the precise location cannot available.

youdao

线性相位误差导致机载SAR成像后目标的位置发生偏离，从而改变多普勒中心频率。研究线性相位误差的特点，提出一种改进的杂波锁定估计方法。

Linear phase error leads to that the estimated target location offsets from its original location in airborne SAR imaging, and the Doppler centroid frequency will be changed.

youdao