threshold n. 1.門檻;入口,門口。 2.【心理學】閾限。 3.界限,限度。 4.【物理學】臨界值,閾。 5.入門,開始,開端。 Seniors of the threshold of the diplomatic career are expected to take this course. 希望即將從事外交工作的四年級生選修本課程。 at the threshold of 在…的開始,就要開始的時候。 cross sb.'s threshold 走進某人家里。 cross the threshold 跨進門內。 on the threshold 在門口。 on the threshold of 在…的開頭,就要…。
In first time , the relationship between probability of detection and probability of fault to snr , contrast and detecting threshold is derived in the assessment of detecting result 在檢測效果評估方面首次推導了檢測概率、虛警概率與信噪比、對比度和檢測門限之間的關系。
But to this algorithm , it is important to select initial value and the amount of computation is large ; ( 3 ) an algorithm is presented to estimate the prfs based on stochastic dynamic - linear models . ( 4 ) a new algorithm for selecting detecting threshold based on the wavelet theory is presented to the environment when pulse sequences distribute unevenly in the whole sampling time 該算法的不足是對初始狀態的選取非常重要且運算量較大; ( 3 )提出基于動態線性模型利用prf進行重頻分選的算法; ( 4 )將小波理論應用到重頻分選中,提出了一種新的檢測門限,適用于脈沖列分布不均勻的信號環境。