頻率域濾波器 的英文怎麼說
中文拼音 [bīnlǜyùlǜbōqì]
頻率域濾波器
英文
frequency domain filter- 頻 : Ⅰ形容詞(次數多) frequent Ⅱ副詞(屢次) frequently; repeatedly Ⅲ名詞1 [物理學] (物體每秒鐘振動...
- 率 : 率名詞(比值) rate; ratio; proportion
- 域 : 名詞(在一定疆界內的地方; 疆域) land within certain boundaries; territory; region
- 濾 : 動詞(除去液體雜質) filter; strain
- 波 : Ⅰ名詞1 (波浪) wave 2 [物理學] (振動傳播的過程) wave 3 (意外變化) an unexpected turn of even...
- 器 : 名詞1. (器具) implement; utensil; ware 2. (器官) organ 3. (度量; 才能) capacity; talent 4. (姓氏) a surname
- 頻率 : frequency; rate
- 濾波器 : [電子學] electric filter; (electric) wave filter; filter
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On the demand of application and according to the soluhons menhoned above, a method of displacement waiting auto - sy ' nchronizing is put forward, which is based on match filters. at the end a complete and speeflc set of hardware circuits and software programs which haplements the scheme, is also presented in the ancle. the synchronization system was tested in the pool and in the shallow wate near m port, the result of the test shows that its performance is satisfactory
論文著重介紹實現了跳頻通信系統同步的一般方法,並詳細分析和對比跳頻同步系統的捕獲方案,在此基礎上,提出了一個基於匹配濾波器的位移等待式自同步方案,設計、完成並給出了詳細硬體連線電路圖、軟體程序流程圖和部分程序清單,該自同步方法在實驗室水池實驗取得良好的效果,並在廈門港海域進行了現場實驗測試,具有較低的誤碼率和一定的檢測概率,結果令人滿意。On the basis of high speed hybrid filter banks adc system, a kind of downsampler model based on bandpass sampling theorem is presented, and analyzed, proved in time and frequency domain, in addition a downsampler is designed according to the model. a class of high effective hybrid filter banks adc system which bases on the downsampler and radio frequency spectrum is proposed, of which digital signal rate falls m times as fast as the former
作者提出了一種基於帶通采樣定理的抽取器數學模型,對該數學模型進行了時域、頻域的分析證明后,設計了一種基於該數學模型的抽取器,進而根據無線電射頻信號頻譜的特點,提出了高效混合濾波器組adc系統,其數字信號輸出速率比高速混合濾波器組adc系統降低m - 1倍。The bottleneck of hybrid filter banks adc system is that it cannot sample directly higher radio frequency signal because of lower analog input bandwidth of its adc. in order to remove it, a kind of downsampler model based on nyquist and bandpass sampling theorem is presented, analyzed and proved in time and frequency domain, in addition a downsampler is designed according to the model. on the basis of hybrid filter banks adc system, a class of high speed hybrid filter banks adc system is proposed
針對混合濾波器組adc系統因其adc模擬輸入帶寬低而不能對頻率較高的射頻模擬信號進行模/數轉換的瓶頸,作者提出了一種基於nyquist采樣定理和帶通采樣定理的抽取器數學模型,對該數學模型進行了時域、頻域的分析證明后,設計了一種基於該數學模型的sha抽取器,進而在混合濾波器組adc系統的基礎上,提出了高速混合濾波器組adc系統。4. the double dsp technique is introduced, and the furthermore the traditional fft analysis and nowaday theory of instantaneous reactive power is combined, thus the combined system of shunt passive filters and active power filters is designed
4 、採用雙dsp晶元技術,將傳統的頻域分析fft計算與現代的瞬時無功功率理論相揉和,進行lc無源濾波器和並聯型有源電力濾波器混合系統的設計。Frequency limitations of log - domain current - mode bandpass filters
對數域電流模式帶通濾波器的頻率限制Pulse compression performances of many pulse compression signals are analyzed in frequency domain. and the methods to design kinds ok range sidelobe suppression filters are proposed. this dissertation produced the method to improve parallelism of fft calculation in vliw architecture and a pulse compression procession system in frequency domain based on adsp2106x which had been emulated by using visualdsp + +, and the result is meet the theory
本文主要介紹了使用越來越廣泛的頻域數字脈壓處理技術,分析了各種脈壓信號的頻域脈壓性能及其旁瓣抑制濾波器設計,設計了一個基於adsp2106x晶元的頻域數字脈壓處理系統,針對adsp2106x晶元的vliw指令結構,利用晶元的并行運算能力提高fft效率,並使用visualdsp + +對系統進行了模擬測試,結果與理論相符。After discussing this kind of filter in this paper in detail, the grads algorithm in time domain and frequency domain is set up when the change of frequency is slow, so it means the algorithm only process the narrowband interference what it changes slowly
論文對數字自適應外差濾波器進行了詳細的研究,建立了自適應外差濾波器的時域和頻域的梯度演算法,該演算法的推導使用了外差頻率變化緩慢的假設,這意味著該濾波器只能夠處理慢變的窄帶干擾。In the paper four usual transformations from s - domain to z - domain are introduced to show the superiority of the bilinear transformation in high - frequency applications. then a novel sc architecture is produced to finish a filter with a cutoff frequency of 17. 8mhz. the accurate bilinear result is reached by dual - rate sampling
文中介紹了四種常用的s域到z域的變換,說明雙線性變換在高頻應用的優點;然後,運用一種新穎的開關電容結構組成濾波器,通過雙采樣的原理導出準確的雙線性變換,其截止頻率達到17 . 8mhz 。Computer simulation results show that the beamspace wsf algorithm retains the super performance of its element space counterpart when applied to the beam outputs of some practical acoustic - receiving array. 3. an improved form of classical time domain broadband beamforming is proposed by combining digital delay lines and fir filters
提出了對經典時域寬帶波束形成器的改進方法,採用數字延遲線和fir數字濾波器結合的方式實現時域波束形成,以消除波束畸變並實時實現結構特殊的空間頻率響應。Then adjust the parameters of gabor filter using the orientation and average ridge frequency at each pixel to realize adaptive filtering. the unrecoverable region is segmented based on orientation certainty. experimental results show a very good visual enhancement effect
求出每個象素點處的紋線方向和方向一致性,以及紋線的平均頻率,用方向和平均頻率調節gabor濾波器對每個象素點進行自適應濾波,並利用方向一致性分割出不可恢復區域,實驗表明具有很好的增強視覺效果。分享友人