base receiver 中文意思是什麼
base receiver
解釋
基地臺接收機-
Secondly, the thesis designs a kind of scheme of simulcast base station and center base station. and the requisite requirement and chip are introduced here, and the most important controller is atmega128, the avr microcontrollers of atmel corporation. the other roles are played by voice processing circuit, simulcast broadcasting station, data transmission broadcasting station, link transmitter - receiver and gps module etc. and some theory is introduced here, which includes a / d conversion and correct code
然後，給出了一種同播基站和中心基站子系統的設計方案並簡要說明了所使用的各種設備和晶元，其中最主要的基站控制器由atmel公司的avr單片機atmega128來完成，其它的還包括語音處理電路、同播電臺、數傳電臺、鏈路機、 gps模塊等，並介紹了相關的理論知識，包括a / d轉換，糾錯編碼等。 -
Each of them is about 5 times more sensitive than the old receiver, located at the base of the line feed
每一個的靈敏度都是原來線饋源底部老接收器的5倍以上。 -
This means that the seti receiver was perched permanently above the arecibo dish at the base of the aging line feed antenna
也就是說seti的接收器永久的占據著阿雷西博碟型天線上老化的線性饋源的底部。 -
The main work of the base - band process part of the receiver is demodulation and decoding, the link control part does the framing and forwarding
接收機的基帶處理部分主要是解調和譯碼，鏈路控制部分組幀和轉發。 -
Angle measuring precision phase sum / difference mono - pulse radar receiver is not only related to accurate strike to target, but also the base of successful penetration of interceptor missile for tbm anti - guidance system using two point sources of correlation, which is one of radar angle fraud technologies. thus, research on technical criteria influencing angle measuring precision of receiver is meaningful
相位和差單脈沖雷達接收機的測角精度，不僅關繫到是否能精確地打擊目標，而且是tbm反制導系統利用相干兩點源雷達角欺騙技術，成功突防攔截導彈的基礎，所以對影響測角精度的接收機各項技術指標進行研究具有重要意義。 -
On the base of the traditional bpm - i, ii time receiver, and by the deeply studied of the theory of software radio ( swr ) and time receiver, we present the short - wave time receiver design on the concept of software radio
本文建立在傳統的短波定時接收儀的基礎上，通過對授時接收機和軟體無線電理論的深入研究，提出了一種新的軟體無線電概念下的短波定時接收機的實現方案。 -
We implement the traffic generator by these studies. the thesis focuses on how to generate abundance flow, how to send flow fastly, how to measure network, how to synchronize flow sender and flow receiver. we use some solution to resolve the problems, including that using linear congruential and modifying select - giveup algorithm to generate random number, implement class that has good application interface to user, making random number as packet ’ s inter - departure - time and packet size, which can provide flow base on special distribution, designing and implementing a method to active measure by our traffic generator, designing a accurately time counter and precision delay function, synchronizing flow sender and receiver by tgm message
通過對現有技術的研究和改進，我們形成的解決方案如下:通過利用改進的線性同余演算法，以及對舍選法進行研究和改進，實現了一個具有良好應用介面的隨機變量生成器，利用其產生的隨機數作為發包的間隔或包的尺寸，以產生服從特定模式的流;利用傳輸的數據包設計並實現了網路的主動測量，為網路測量和流的發送設計了高精度的計時器，精確延時函數;利用自定義的tgm報文協調發送端和接收端的操作。 -
Digital down - converter ( ddc ) is one of the key technologies used by sdr receiver. the ddc module is a data processing part, following the ad sampler. the main function of ddc is extracting narrow - band data from broad - band data which is digitalized by ad sampler, down - converting these data to base - band, and decreasing data rate as well
Ddc數字下變頻器技術作為軟體無線電中的核心技術，是緊跟在ad采樣后的一個處理模塊，他的主要功能是從輸入的寬帶高速數字信號中提取所需的窄帶信號，將其下變頻為數字零中頻，並降低數據的速率。 -
This paper studies using asic ic2001 which is zte independently - developed and dsp from ti company to finish the driver of rake receiver and symbol processing function based on 3g base band. achieving the chip mapping, resource planning, the driver of baseband realization and experimental validation with the developing tool ccs ide supplied by ti company
本文研究運用中興公司自行研發的專用集成晶元ic2001與ti公司的dsp晶元共同完成第三代移動通信（ 3g ）基帶處理上rake接收機和符號級處理功能的基帶系統驅動，在ti公司提供的開發工具ccs集成環境中完成晶元映射、資源規劃、系統驅動方案實現及進行實驗驗證。 -
In this paper, a smart - antenna base receiver compatible with the w - cdma standard is researched and designed. according to this standard, the up - link frequency band allocates from 1920mhz ~ 1980mhz, and the signal is modulated by qpsk schemes
本文主要針對應用於w - cdma系統的智能天線接收機射頻前端進行研究和設計，此接收機應用於w - cdma系統上行鏈路（ 1920mhz 1980mhz ） ，採用qpsk調制技術。 -
For the receiver which uses the intermediate frequency real signal output manner, a good frequency plan should guarantee the transition band of the “ spectrum blocks ” which produced by the sampling as wide as possible, so as to ease the burden of the base - band signal processing to the minimum level. it has not been particularly analyzed in the former references about receiver design, and the main
在以往有關接收機設計的文獻中很少對此進行過詳細的分析，其主要原因是大多數接收機系統的信號帶寬較窄（通常在2 、 3mhz以下） ， fif和fs受到的限制較少，可以很輕易的保證采樣之後各「譜塊」有足夠的過渡帶寬。 -
Receiver function is simulated for inhomogeneous media, as a special case for elastic wave modeling with nearly vertical incidence plane p wave as initial condition, and provide the base for inversion and migration of receiver function in inhomogeneous media
以下覆半無限空間近垂直入射平面p波，作為彈性波數值模擬的特例，來模擬接收函數，從而為橫向非均勻介質中接收函數的反演和偏移成像問題奠定了研究基礎。 -
There are two research works is involved in this thesis. first, an algorithm of data reconstruction in videos and images is proposed. base on this reconstruction technology, we developed the precept of layer coding in sender, the structure of data stream and the precept of post processing in receiver with analyzing the scheme of real time transmission of video in network
本文的研究工作包括兩個方面：首先提出了一種視頻與圖像中數據丟失的重建演算法，以此為基礎對基於網路的實時視頻傳輸方案進行了研究，提出了信源端分層編碼方案、數據流組織方案以及接收端後向處理方案。 -
The radio frequency receiver supports interface for instrument and base station and air interface for mobile station, and it takes the task of magnifying low noise and down - convert and digital baseband processor filtering and magnifying intermediate frequency to reverse link signal. the digital baseband processor samples the received signal after down - convert radio frequency signal to intermediate frequency signal and processes other processing and supports interfaces to computer, next sends data to computer. the gps receiver supports interface for instrument and gps system, and receives gps system signal, next it demodulates the correlative information and sends out benchmark clock signal we need
射頻接收部分主要為儀器和基站、移動臺提供空中介面，其主要任務是在反向鏈路上對接收到的射頻調制信號進行低噪聲放大、射頻下變頻變換、中頻濾波放大等;數字基帶部分為對接收信號變頻為中頻后進行a / d采樣，以及其他的rsp處理並和計算機提供介面，將數據送至計算機進行后臺處理、顯示等; gps接收機部分為儀器和gps系統提供介面，接收gps系統信號並解調相關信息，輸出所需的電文及時鐘基準信息等。 -
A good base of using single - channel receiver to realize mobile space spectral estimation direction finding engineering and minitype system is proposed
該設計方案為空間譜估計測向的進一步工程化、小型化打下了良好的基礎。 -
And the spreading modulation, radiation signal modulation and choosing of waveform parameters are also discussed, which is the base of the receiver designing
同時對擴頻調制方式、射頻信號調制方式以及波形參量的選擇進行了重點的論述，並對擴頻通信系統的相關指標進行了計算。
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