multiple sources of noise 中文意思是什麼
multiple sources of noise
解釋
多個噪音來源；多種根源的噪音-
From chapter three to chapter five, the three key components of the system : millimeter - wave phase locked sources, multiple frequency local source, low noise amplifier are designed and tested
第三章至第五章分別介紹了毫米波鎖相源、二倍頻本振源和低噪聲放大器三個系統關鍵的單元電路的設計過程和測試結果。 -
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。 -
The dgeu noise is made up of multiple sound sources. in light of the noise radiation mode, it can be classified into the aerodynamic noise and the surface radiation noise
柴油機噪聲是一個由多種聲源構成的復雜聲源，按照噪聲輻射方式，柴油機噪聲可以分為空氣動力噪聲和表面輻射噪聲。 -
As one source of environmental pollution, diesel noise comprises multiple sound sources, which are mainly the aerodynamic noise and the surface radiation noise
柴油機組噪聲是一種環境污染源。它由多種聲源構成的，主要為空氣動力噪聲和表面輻射噪聲。
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