cumulant spectral 中文意思是什麼
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This new method only uses three cumulant matrices, and doesn ' t require searching spectral peak or pairing parameters, and is easily implemented
該演算法僅需使用3個高階累積量矩陣，而且無須譜峰搜索和參數配對，計算簡單。 -
Based on fourth - order cumulant, a computationally efficient method for joint estimating both directions of arrival and ranges of near field sources with known carrier frequency is firstly presented. the proposed algorithm need not any spectral peak searching and the 2 - d parameters are automatically paired. lt is suitable for arbitrary additive gaussian noise environment. in the following section, a 3 - d esprit method for jointly estimating of frequencies, doa ' s and ranges of multiple near - field sources with unknown carrier frequencies is proposed. the parameters estimation are given by the eigenvalues of different matrices. furthermore, its performances are confirmed by several computer simulations
利用四階累積量，第五章首先給出了一種載頻已知的情況下基於近場源的距離和波達方向聯合估計演算法，通過構造的陣列輸出信號四階累量矩陣使空間信號到達方向和距離估計無需譜峰搜索，且參數自動配對，適合於任意高斯噪聲環境。進一步在第三節提出了一種載頻未知的情況下的多個近場窄帶信號源doa 、距離和頻率聯合估計的3 - desprit演算法。 -
Several methods of sequence spread spectrum signals direction have been developed, such as energy detection, correlation detection, cepstrum detection, cyclic spectral, higher order cumulant detection, etc. these methods developed from the research of detection and estimation for ds signals
直擴通信信號檢測的研究已發展出許多方法，如能量法、相關法、倒譜法、周期譜法及高階譜法等。
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