signal n. 1.信號,暗號;信號器。 2.動機,導火線 (for)。 3.預兆,征象。 call signal 【無線電】呼號。 an alarm signal 警報(器)。 an information signal 〔美國〕暴風警報(旗)。 an international code of signals 國際通用信號。 a signal of distress =a distress signal 船只失事信號。 adj. 1.暗號的,作信號用的。 2.顯著的,非常的,優(yōu)越的。 a signal victory [defeat] 大勝[敗]。 vt.,vi. (〔英國〕 -ll-) 發(fā)信號[警報]給(人、船等);用信號[警報]通知(暴風、危險等);用動作[手勢]示意;預示。 a signaling bomb 信號彈。
Adaptive wavelet transform using signal correlation detecting and its application 采用立體編織工藝構造人工骨仿生微結構
The noise - improved signal correlation in maximizing threshold networks is discussed 摘要討論了極大并聯(lián)閾值網絡中噪聲改善信號相關性問題。
On underwater target dimension recognition based on bearings analysis of signal correlation feature 基于相關法方位分析的水下主動目標尺度識別研究
When the input noise is the single - peak gaussian noise , the noise can improve the signal correlation only for the sub - threshold signal , i . e . subthreshold stochastic resonance ( sr ) exists 當輸入噪聲為單峰高斯噪聲時,輸入信號在閾下時噪聲才能改善信號的相關性,即隨機諧振現(xiàn)象存在。
This model has the ability of analyzing the effects of some key system parameters , such as the signal correlation coefficient , speed of the mobile , and the update rate of combining weights , on the system performance 研究了信號相關系數(shù)、移動臺運動速度、信道衰落率,以及合并權值更新速度對合并性能的影響。
2 . the signal correlation spectrum is corrected to rectangle spectrum by using spectrum correcting technique and then added window to restrain distance sidelobe , and all one dimension divided correlation outs are added diversified windows to restrain rate sidelobe 2 、利用譜修正技術把相關輸出信號頻譜修正成矩形頻譜,再加窗抑制距離旁瓣,對所有一維分段相關輸出組縱向加各種窗形抑制速度旁瓣。
However , when the input noise is the double - peak gaussian mixture noise , the noise can improve the signal correlation for the subthreshold signal and the suprathreshold signal , i . e . , both sr and suprathreshold stochastic resonance ( ssr ) often occurs 而當輸入噪聲為雙峰高斯混合噪聲時,不僅輸入信號在閾下時隨機諧振現(xiàn)象有時存在,而且輸入信號在閾上時噪聲往往也能改善信號的相關性,即閾上隨機諧振現(xiàn)象存在。
In the second part , the new method is compared with the old one in such aspects as system structure and signal processing methods . in the third part , the properties of dsss and lfm systems , especially the echo signal correlation processing of the systems are discussed . the last part are the respective analyses of water - pipe simulation experiment results and the trial results in zhong yuan oil field 本文首先介紹了超聲測距的基本原理,分析了信道的聲傳輸特性;接著將傳統(tǒng)液位測量方法和新型液位測量方法的系統(tǒng)構成和信號分析處理方法做比較;然后對系統(tǒng)的發(fā)射信號(直接序列擴頻信號和線性調頻信號)的特點進行了研究,并著重討論了回波信號的相關處理;最后對水管模擬實驗測量結果和油田實地測量結果分別進行了分析和討論。
Frequency code is not uniformity distribution and keeps to a probability distribution function defined by the spectral characteristics of the target of interest . the phase code is equally duality pseudo - random sequence and used to reduced the sidelobes of the signal correlation function . and the mismatch - phase sequence is corresponding with the frequency sequence one by one 而頻率編碼為不均勻分布,由所觀測目標的頻譜信息提取出概率密度函數(shù)決定頻率編碼序列的分布;相位編碼為二元的偽隨機序列,采取均勻的二相編碼,消減同頻脈沖帶來的過高的相關函數(shù)的旁瓣;而失配相位為與頻率編碼相一一對應于各子脈沖中。