if ( intermediate frequency )中文是什么意思

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中文翻譯
造句

中頻

if If they had only arriv ...
intermediate frequency 【無線電】中頻。
frequency, intermediate (if) 中頻
if intermediate frequency 中頻
intermediate frequency if 中頻
high-intermediate-frequency receiver 高中頻超外差式接收機
image intermediate frequency amplifier 圖像中頻放大器
image intermediate frequency transformer 圖像信號中頻變壓器; 像信號中頻變壓器
intermediate allelic frequency 中間等位基因頻率
intermediate frequency amplification 中頻放大
intermediate frequency amplifier 中頻放大器
intermediate frequency amplifier gain 中頻放大器增益
intermediate frequency attenuator 中頻衰減器
intermediate frequency cancellation 中頻對消
intermediate frequency canceller 中頻對消器
intermediate frequency ceramic filter 中頻陶瓷濾波器
intermediate frequency channel 中頻信道
intermediate frequency contactor 中頻接觸器
intermediate frequency distortion 中頻失真
intermediate frequency filter 中頻濾波器; 中頻濾光器
intermediate frequency furnace 中頻感應(yīng)爐; 中頻爐; 中周波感應(yīng)電爐
intermediate frequency gain 中頻增益
intermediate frequency generating set 中頻發(fā)電機組
intermediate frequency generator 中頻發(fā)電機
intermediate frequency integration 中頻積累

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例句與用法

If ( intermediate frequency ) receiver is an important component in modern radar and communication system
數(shù)據(jù)采集系統(tǒng)是信號與信息處理系統(tǒng)中不可缺少的重要組成部分。
Chapter 2 sets forth the structure of if ( intermediate frequency ) digital software radio , the critical theory of software radio and the signal processing technique about it
第二章介紹了中頻數(shù)字化軟件無線電的結(jié)構(gòu)，并闡述了軟件無線電的關(guān)鍵理論和軟件無線電中的信號處理技術(shù)。
In this paper , we summarize the basic principles of the if ( intermediate frequency ) digital technology and detail the project and realization of the if digital system
本文概述了中頻數(shù)字化技術(shù)的理論基礎(chǔ)，詳細討論了中頻數(shù)字化系統(tǒng)的方案和具體實現(xiàn)，同時給出了系統(tǒng)有關(guān)指標(biāo)的測試方法和測試結(jié)果。
In order to increase processing rate of inserting filters , pipe line is used to satisfy if ( intermediate frequency ) modulation . 5 . nco ( numeric controlling oscillator ) based on lab ( look - at table ) fully satisfy if modulation
研究了級聯(lián)內(nèi)插濾波器在寬帶if調(diào)制中的應(yīng)用;以及如何加流水線( pipeline )提高內(nèi)插濾波器的處理速率,滿足高速中頻( if )調(diào)制要求。
First , the theory and structure of swr is expounded , then software and hardware models of the base station , which use the sdr structure of wideband and band - pass sampling in if ( intermediate frequency ) , are put forward
首先介紹了軟件無線電的概念、特點、基礎(chǔ)理論和基本構(gòu)成，推導(dǎo)了軟件無線電的數(shù)學(xué)模型，然后在此基礎(chǔ)上詳細討論了基于寬帶中頻帶通采樣軟件無線電結(jié)構(gòu)的移動通信基站的硬件和軟件的設(shè)計方案。
First , the structure of sdr and the physical - channel of td - scdma are expounded , then software and hardware models of the terminal receiver , which use the sdr structure of wideband and bandpass sampling in if ( intermediate frequency ) , are put forward
首先對軟件無線電的組成結(jié)構(gòu)和td - scdma物理信道進行了闡述，在此基礎(chǔ)上提出了基于寬帶中頻帶通采樣軟件無線電結(jié)構(gòu)的td - scdma終端接收機的軟硬件模塊設(shè)計方案。
The purpose of this thesis is to work deeply over the sr theory , understand the key thinking of sr , cognize the key technologies of sr , and design the if ( intermediate frequency ) sr receiver subsystem basing on the sr theory
本文的研究目的是深刻研究軟件無線電基礎(chǔ)理論，領(lǐng)會軟件無線電關(guān)鍵思想，認識軟件無線電中的關(guān)鍵技術(shù)，掌握軟件無線電的發(fā)展現(xiàn)狀和應(yīng)用前景，設(shè)計基于軟件無線電思想的中頻軟件無線電接收機子系統(tǒng)。
The results of computer simulation and fpga simulation indicate that the technique is feasible and the experiment ' s results show that the performance of the system is excellent . in this paper , it summarize the basic principles of the if ( intermediate frequency ) digitization technology and detail the design and fpga realization of the digital if receiver system
在具體實現(xiàn)中，提出了一種基于多相濾波結(jié)構(gòu)來進行抽取濾波的中頻接收機方案，通過計算機仿真，證明了它的可行性，并圍繞此方案完成了數(shù)字下變頻硬件系統(tǒng)的設(shè)計和調(diào)試工作。
On the basis of this theory , the applications of the sdr structure of wideband and bandpass sampling in if ( intermediate frequency ) in flight test were offered : increase the sampling in if ( intermediate frequency ) in flight test were offered : increase the capacity of the transmitter and the terminal receiver channels without changing the apparatus of original system and on the conditions of obeying the standard remote sensing
首先對軟件無線電的組成結(jié)構(gòu)和飛行測試中實際使用的信道進行了闡述，在此基礎(chǔ)上提出了基于寬帶中頻帶通采樣軟件無線電結(jié)構(gòu)在飛行遙測測試中的應(yīng)用，在不改變原系統(tǒng)設(shè)備的情況下，在遵守遙測標(biāo)準的前提下，提出增加機載發(fā)射機和接收機信道容量的設(shè)計方案。
In recent years , with the rapid development of the millimeter - wave radar technology and the demand of the safety , anticollision radar system is being studied and used widely . the if ( intermediate frequency ) circuit and the digital signal processing are two important parts of it
隨著毫米波雷達技術(shù)的日益成熟和人們對安全性的迫切需要，近年來，防撞雷達系統(tǒng)得到了深入研究和廣泛應(yīng)用，如自動巡航控制、碰撞報警和防碰撞系統(tǒng)以及有待發(fā)展的雷達成像和汽車的自動駕駛系統(tǒng)等。

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