按門限判決規(guī)則檢測調相二進碼時的錯誤概率
THE ERROR PROBABILITY OF DETECTING PHASE-MODULATEL BINARY CODES ON THE BASIS OF THE THRESHOLD DECISION RULE
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摘要: 本文計算出偽隨機碼測距系統(tǒng)中按門限判決規(guī)則檢測調相二進碼時的錯誤概率,并與極大似然判決規(guī)則檢測的結果進行了比較。文章指出:在相同條件下,從統(tǒng)計平均角度來看,按門限判決規(guī)則與按極大似然判決規(guī)則檢測的結果相差不多;即使按最長捕獲時間計算,前者檢測結果也只不過比后者差3分貝。
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關鍵詞:
Abstract: On the basis of the Threshold Decision rule calculations are made of the error probability of detecting phase-modulated binary codes in the system of Pseudo-random code for the measure of distance. The results are compared with results of measurements on the basis of the maximum likehood decision rule. It is pointed out that under similar conditions, results obtained from measurements according to the two rules from the point of view of statistical average differ very little; results obtained from the former differ only by 3dB from the later, even calculations are made according to the longest trapping time. -
鞠德航、林可祥、陳捷,信號檢測理論導論,科學出版社,1977. -
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