intermediate frequency receiver 中文意思是什麼
intermediate frequency receiver
解釋
中頻接收機- intermediate : adj 中間的，居間的。 The intermediate class （船的）特別三等。 An intermediate compound 中間化合...
- frequency : n. 1. 屢次，頻仍，頻繁。2. （脈搏等的）次數，出現率；頻度；【物理學】頻率，周率。
- receiver : n 1 接受者。2 收稅人，收稅官。3 招待人。4 窩家，收買賊贓的人。5 應戰者。6 【法律】破產案產業管理...
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Intermediate frequency transformers for broadcast receiver
收音機用中頻變壓器 -
Intermediate frequency of radio receiver for broadcast
廣播用無線電接收機的中間頻率 -
Talking about picture intermediate frequency of tv receiver
電視接收機圖像中頻的探討 -
Design and realization of a digital - intermediate frequency receiver
一種數字中頻接收機的設計與實現 -
After establishing the model of intermediate frequency direct sequence spreading spectrum ( if dsss ) receiver, comparing and analyzing several conventional code acquisition methods, code and carrier two - dimension fast acquisition scheme based on two - dimension fft is proposed. finally, the situation for two targets is analyzed
首先在建立了中頻直擴接收機的模型之後，本文對常用的偽碼捕獲方法進行了詳細地分析和比較，然後提出了本文的基於二維傅立葉變換技術的快速捕獲方法，並且分析了兩個目標時的情況。 -
If ( intermediate frequency ) receiver is an important component in modern radar and communication system
數據採集系統是信號與信息處理系統中不可缺少的重要組成部分。 -
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
首先對軟體無線電的組成結構和td - scdma物理通道進行了闡述，在此基礎上提出了基於寬帶中頻帶通采樣軟體無線電結構的td - scdma終端接收機的軟硬體模塊設計方案。 -
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體無線電基礎理論，領會軟體無線電關鍵思想，認識軟體無線電中的關鍵技術，掌握軟體無線電的發展現狀和應用前景，設計基於軟體無線電思想的中頻軟體無線電接收機子系統。 -
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
在具體實現中，提出了一種基於多相濾波結構來進行抽取濾波的中頻接收機方案，通過計算機模擬，證明了它的可行性，並圍繞此方案完成了數字下變頻硬體系統的設計和調試工作。 -
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
首先對軟體無線電的組成結構和飛行測試中實際使用的通道進行了闡述，在此基礎上提出了基於寬帶中頻帶通采樣軟體無線電結構在飛行遙測測試中的應用，在不改變原系統設備的情況下，在遵守遙測標準的前提下，提出增加機載發射機和接收機通道容量的設計方案。 -
Our object is an intermediate frequency modem of a software defined radio transmitter - receiver of multi - service, multi - modulationmode and multi - processdatarate. first, related software defined radio theory is introduced ; later, channels of transmitter - receiver are designed with consideration of data format, modulation, fec, interwaving. and scrambling ; emphasis is placed on theory and implementation of an audio compression algorithm cvsd ( continuous variable slope delta modulation ) and a fec technique convolutional coding - decoding
本文首先介紹了相關的軟體無線電理論；然後完成了包括數據格式，調制方式，糾錯碼方式，交織器和擾碼器等部分的中頻數據機通道設計；接著著重介紹了系統中使用的音頻壓縮演算法cvsd （連續可變斜率增量調制）的原理和實現，以及作為前向糾錯碼的卷積碼編碼理論和編解碼的高效實現。 -
The rf receiver consists of rf front end and baseband regulation module. the high - intermediate - frequency superheterodyne structure is adopted in the final scheme. the fine sensitivity of the receiver is achieved by two cascaded lna in the front of the system
系統採用超外差式變頻結構設計，兩級低噪聲放大單元級聯保證了接收機靈敏度，兩級增益控制單元實現了所要求的接收機動態范圍，並且整機的線性度也得到了保證。 -
The high - intermediate - frequency superheterodyne structure with twice conversions is used. three cascaded agc units applies in the receiver system, one of them is used as the choice, for realizing a high dynamic range while the linearity of the system is well guaranteed
系統採用了兩次變頻超外差式結構設計，第一中頻為高中頻。另外系統還包含了三級自動增益控制單元，其中一級agc作為選項，實現了較大的動態范圍，並且整機的線性度也得到了保證。 -
In this paper, for 2 ~ 2000mhz broadband rf front - end, using subsection processing fixed intermediate frequency superheterodyne architecture, and combining with the actual component ’ s level, a broadband rf front - end system simulation platform is presented, which provided the universal, standardization, and modularization of transmitter and receiver
本文針對頻率范圍2 2000mhz的寬帶射頻前端，採用分段處理的固定中頻超外差結構，並結合目前的器件水平，建立了一個通用化、標準化、模塊化的寬頻帶射頻前端發射機和接收機系統模擬平臺。 -
Then, we introduce the basic structure of pd weather radar signal processing system and their function of each subsystem, mainly including intermediate frequency receiver, clutter elimination, range correcting and smoothness, ambiguity resolution and spectrum estimation
並在此基礎上介紹了氣象雷達信號處理系統的基本構成與各部分的主要功能，主要包括氣象回波中頻接收、雜波抑制、距離訂正、平滑處理、解模糊和譜矩估計等。 -
Zero - intermediate frequency receiver
零中頻接收機 -
As what is concluded from the above that it is practicable to design the digital intermediate frequency receiver with wide band at present
由此可見，在現有條件下實現寬帶數字中頻接收機是可行的。 -
The de - hopping and digital intermediate frequency receiver can either do the real - time de - hopping processing or be used as a software radio receiver
需要實現的跳頻解跳與數字中頻接收機既能對跳頻信號進行實時解跳，又能做為一臺軟體無線電接收機使用。 -
The thesis that did the research focusing on the realization of real - time de - hopping processing, introduces the hardware and software models of the de - hopping and digital intermediate frequency receiver and describes the key part of the design
本文將對跳頻信號的實時解跳處理進行研究，著重對跳頻解跳與數字中頻接收機的實現上進行論述，並介紹該接收機的軟硬體模型，對實現方案的重要環節進行闡述。 -
This paper discusses key technology in the digital intermediate frequency receiver with wide band based on software radio, including down - converter on condition of band - pass - sampling, digital down - converter, multi - rate digital signal processing, band - pass signal decimating, and achieves software system simulation based on under - sampling
摘要分析了基於軟體無線電的寬帶數字中頻接收機中的關鍵技術帶通采樣下變頻技術、數字下變頻技術、多速率處理技術，並實現了欠采樣技術條件的軟體系統模擬。
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