Residual fixed pattern noise (RFPN) is becoming a major limitation for system recognition capability due to the continuous decrease of temporal NETD in thermal imager.

• 随着热像系统时域噪声等效温差（NETD）的不断下降，残余固定图形噪声（RFPN）的不稳定性成为制约系统性能，特别是制约系统识别能力的一个关键因素。