When the DPCA condition is not satisfied, the error of sampling position can be compensated by a linear phase in Doppler frequency domain.

在不满足DPCA条件时，采用在多普勒频域乘以线性相位的方法来实现平动补偿。

youdao

The poll of Democratic voters has a sampling error of plus-or-minus 5 percentage points.

CNN: Poll: Bush down, Clark up

The survey of 1, 000 adults was taken Sunday through Tuesday, with a sampling error of plus or minus three percentage points.

CNN: Poll: Americans split on worthiness of war

The results of the poll, conducted nationally by telephone between Friday and Sunday, has a sampling error of plus-or-minus 3 percentage points.

CNN: Poll: Bush down, Clark up