The cross correlation of pixels between two frames regarding background interframe continuity and foreground discontinuity is also computed. 同時，基於背景的幀間連續性和前景的不連續性，計算像素幀間的互相關係數。
However, different relative delay between users results in distinct partial correlation coefficients thus bringing about distinct performance of multiuser detectors. 然而，非同步用戶間不同的相對時延將引起不等的部分互相關係數，從而也導致不一樣的多用戶檢測性能。
