bandpass signal 中文意思是什麼
bandpass signal
解釋
帶通信號-
In the future it may be possible to have such bandpass sigma - delta adcs with userprogrammable digital filter coefficients, so that the passband of a receiver could be modified during operation in response to the characteristics of the signal ( and the interference
未來可能會出現用戶可編程數字濾波系數的帶通- adc ，這樣接收機的通頻帶就可以隨著所接收的信號的特性而改變。 -
Uniform undersampling technique of bandpass signal and its engineering application in software digital if receiver
帶通欠采樣技術及在數字中頻軟體接收機中的工程應用 -
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。 -
Based on iec standards, the methods of designing square demodulator, bandpass - weighted filter, and smoothing filter are presented. besides, the signal conditioning circuits and online statistical analysis methods of instantaneous flicker value are given. matlab simulink is also used to simulate the measuring process of voltage fluctuation and flcker
基於iec標準要求，設計了實現數字式電壓閃變測量的平方解調器、帶通加權濾波器、平滑濾波器等各環節，給出了信號調理電路和瞬時閃變值在線統計分析方法，並應用matlab系統模擬工具simulink對電壓波動和閃變測量全過程進行了數字化模擬。 -
This paper makes out the sampling frequency of bandpass sampling theorem, reduces the data rate after the sampling of broadband software radio ( signal bandwidth is 20 mhz ) and raises information processing speed
本文確定了按帶通采樣定理采樣的頻率，降低了寬帶軟體無線電（信號帶寬為20mhz ）采樣后的數據率，提高了信息處理能力。 -
The digital quadrature sampling theorem for bandpass signal and its optimum design
帶通信號的數字正交采樣定理及優化設計 -
Software radio which promises well needs a kind of wideband high speed and resolution adc, but at present it is hard to realize. on the basis of the theory of multirate signal processing, the theory of filters, bandpass sampling theorem and adc principium, perfect reconstruction quadrature mirror filter ( prqmf ) banks adc system is proposed
基於此背景，本文在融合多速率數字信號處理理論、濾波器理論、帶通采樣定理以及adc原理的基礎上，提出了prqmf濾波器組adc系統，並對該adc系統的原理、結構、特性進行了探討和研究，其主要結論和創新之處如下： 1
分享友人