輔助抑制系統 的英文怎麼說

中文拼音 [zhùzhìtǒng]
輔助抑制系統 英文
supplementary restraint system (srs)
  • : Ⅰ動詞(輔助) assist; complement; help Ⅱ形容詞(輔助) subsidiary Ⅲ名詞1 (車輪外旁增縛夾轂的兩條...
  • : 動詞(幫助; 協助) help; assist; aid; support
  • : Ⅰ動詞(向下按; 壓制) restrain; repress; curb Ⅱ連詞[書面語]1 (表示抉擇) or 2 (表示轉折) but3 ...
  • : Ⅰ動詞1 (製造) make; manufacture 2 (擬訂; 規定) draw up; establish 3 (用強力約束; 限定; 管束...
  • : 系動詞(打結; 扣) tie; fasten; do up; button up
  • : Ⅰ名詞1 (事物間連續的關系) interconnected system 2 (衣服等的筒狀部分) any tube shaped part of ...
  • 輔助 : 1. (從旁幫助) assist 2. (非主要的) supplementary; auxiliary; subsidiary
  • 抑制 : 1 (控制) restrain; control; check; hold up; curb; stop; repress; bridle; choke; prehension; sup...
  • 系統 : 1. (按一定關系組成的同類事物) system 2. (有條理的;有系統的) systematic
  1. This paper mainly focuses on the noise limiting by means of the direct sequence spread spectrum ( dsss ) and the analysis of the transmission performance of the plc and some digital modulation technology. the contents of the paper is as follows : 1 ) the technical feasibility is proved after simulating noise limiting principle of dsss by means of systemview, the simulation software ; 2 ) a kind of band pass filter ( bpf ) is realized according to the requirement of filter and the principle of butterworth approximation, which satisfies the index of performance of dsss. 3 ) the low voltage plc system includes the sc1128, the specific modulation / demodulation ic, the bpf filter and other circuit components, furthermore, the control function of system is realized by means of the personal computer and the microcontroller

    本課題在對低壓電力線的傳輸特性和數字調技術進行分析的基礎上,將通信理論中的直接序列擴頻技術( dsss )用於解決低壓電力線通信的干擾問題,主要研究內容如下: ( 1 )用通信模擬軟體systemview對dsss技術的通信和抗干擾原理進行模擬分析,分別對時域和頻域下採用dsss技術前後接收信號的頻譜進行分析,驗證dsss技術在本中的可行性; ( 2 )由dsss技術對濾波的要求,根據濾波理論分析了巴特沃思型濾波器的逼近原理並設計了合適的濾波電路; ( 3 )用調解調晶元sc1128和自行設計的濾波器加之外圍電路,構造出低壓電力線載波通信,並採用atmel公司的單片機設計了接收和發射電路的微控器; ( 4 )分別對採取抗干擾措施前後輸入和輸出信號進行對比實驗,並對結果進行分析,驗證了dsss技術對干擾信號的作用。
  2. At the same time, a simple channel estimator that can suppress the peak - to - average power ratio ( papr ) for ofdm system with multiple transmitter antennas is proposed, its simulation proves again the result. ( 5 ) ofdm receiver is proposed with multiple transmitter antenna and alamouti scheme

    結果表明,多個獨立天線ofdm的性能明顯優于單天線的ofdm;同時還給出了一種簡單的能有效峰值功率平均功率比( papr )且適于多發射天線ofdm的導頻符號的通道估計方法,模擬結果再次證明了上述結論。
分享友人