baseband processing 中文意思是什麼
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This thesis primarily discussed the baseband processing of ss communication signal based field programmable gate array ( fpga ) asic chip
本論文主要討論和實現了基於fpga的擴頻通信信號的基帶處理。 -
Presents the development of modern signal processing techniques, a new implementation method which realizes quadrature coherent detection by direct sampling of if signal generated during the implementation of traditional quadrature coherent detection with analog elements in the form of two parallel baseband channels where in phase ( i ) and quadrature ( q ) components of ceived if singnal where, the imperfect matching of the separate channels due to the analog elements results in high phase and amplitude which meets the needs for high performance radar signal processing, the elementary principles and the implementation process for each method and concludes from simulation results to compare their features and application conditions that the new approach can satisfy of the requirements of high performance sp
針對近年來提出的通過直接中頻采樣來實現正交相干檢波的方法，分析了其基本實現原理，並用統一的觀點解釋了迄今為止國內外基於此提出的各種實現方法；對每一實現方法的基本原理和實現過程都作了分析，並給出了計算機模擬結果；在此基礎上比較了各方法的性能指標及適應條件.理論分析和模擬結果證明，這一方法完全可以滿足高性能信號處理的要求 -
The design and application of ad6640 and ad6624 are fully discussed in this part. the design of software module includes the parameter design for ddc filter and the baseband signal processing of dsp. and the realization of the viterbi channel decoding algorithm by dsp and the simulation of the burst at the transmitter are discussed
模塊的硬體設計主要包括： a d轉換器、數字下變頻器（ ddc ）以及dsp ，詳盡討論了a d器件ad6640和ddc器件ad6624的設計和應用；模塊的軟體設計主要包括： ddc濾波器參數設計和dsp的基帶信號處理，給出了viterbi通道譯碼演算法dsp實現和發射端突發形成的模擬實現。 -
High performance dsp resource board - cpci - c6800 designed for 3g baseband processing, broadband wireless local loop, fixed wireless access and wireless backhaul. . .
最高性能的dsp資源板，為視頻圖象和電信應用提供強大的動力. . -
High performance dsp resource board - - cpci - c6800 designed for 3g baseband processing, broadband wireless local loop, fixed wireless access and wireless backhaul. . .
最高性能的dsp資源板，為視頻、圖象和電信應用提供強大的動力 -
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。 -
The paper is arranged from up to down. from umts to utran, then nodeb and baseband processing are proposed, at last the downlink symbol rate dsp is the corn and importance of the paper. the paper tries to clear the relationship between systems and system and sub - system, and gives a complete concept to reader
從umts通信系統到utran的結構，然後關注到nodeb和基帶處理系統，最後是下行符號級處理dsp的具體實現。其中最後的實現是論文的核心和重點，論文也力求闡明各個系統之間以及系統與其子系統之間的關系，給讀者一個整體的概念和完整的認識。 -
As a key technolege of wcdma, baseband processing is difficult. the baseband processing is very important to the whole wcdma system. this paper concerns the baseband downlink symbol rate processing of the wcdma, including commond processing module, tti module, adm module, initial module and dsp driver
本論文主要關注wcdma基帶處理系統下行子系統的符號級處理的實現，從命令處理模塊、調度模塊、初始化模塊、業務處理模塊以及dsp的底層驅動幾個方面對下行符號級處理dsp進行了詳細的說明。 -
In the view of stochastic resonance ( sr ) and signal processing, parameter - turning sr ( psr ) theory and method is proposed and the characteristics of bistable systems are studied. the applications of psr in multi - frequency analog signal processing, digital baseband pulse - amplitude modulation signal transmission and digital carrier modulation signal transmission are investigated. this thesis has also introduced the concepts of parameter - adaptive sr and array - induced sr
本文主要從隨機共振物理力學機理與信號處理的角度，研究了非線性雙穩態系統的數字特徵，提出了參數調節隨機共振（ psr ）理論和方法，並將這一理論應用到多頻模擬信號處理、數字基帶信號傳輸和數字載波調制信號傳輸中，引入了參數自適應隨機共振和陣列隨機共振系統的概念。 -
In detail, the author narrates the function and working elements of network card, and the signal processing from baseband to if to rf, also the protocol process of medium access control ( mac ) layer
詳細講述了網卡的功能構成、工作原理、從射頻到中頻到基帶的信號處理過程、以及媒體訪問控制層（ mac ）協議處理方法等。 -
Second, the design of hardware module including a / d converter, ddc ( digtial downconverter ) and dsp was illustrated. in this part, the design and application of ad6644, hsp50216 and dsp chips are fully discussed. the design of software module mainly refers to the parameter design for ddc filter and the baseband signal processing of dsp which is realized by some simulation
其次模塊的硬體設計，主要包括： a d轉換器、數字下變頻（ ddc ）以及dsp ，詳盡地介紹了a d轉換器件ad6644 、數字下變頻hsp50216 、 dsp晶元的設計方法，模塊的軟體設計主要是數字下變頻參數的設計和后續基帶信號的處理，並對該系統實現系統模擬。 -
The thesis expounds the cell design and timing design of the fpga circuit in main controlling and baseband signal processing module, and develops the hardware of it, and programs part of the software
文中詳細闡述了主控與基帶處理單元中fpga模塊設計與時序設計，研製了主控與基帶信息處理單元硬體，編寫了部分調試軟體。 -
Its basic function is to pick up the narrowband signals from the broadband & high speed digital signals, and transform it to the baseband. then the low speed baseband signals are sent to the following dsps for processing
其基本功能是從輸入的寬帶高速的數字信號中提取所需的窄帶信號，將其下變頻為數字基帶信號，並轉換成較低的數據率，以供后續的dsp作進一步的處理。 -
Baseband processing unit bpu
基帶處理單元 -
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。 -
Other sub - projects in the maglev communication system projects deal with the communication channel, including baseband signal encoding and decoding, transmitting and receiving the wireless signal and baseband signal processing the technique of synchronization is deeply request in the digital communications system
本課題涉及車地通信系統中基帶的通道編解碼和無線通道的收發，完成通信系統中基帶信號處理部分的部分功能。在數字通信中，同步是一個重點。 -
The mcu is in charge of the baseband processing and controlling, and radio frequency module uses the chip, cywusb6934, which is produced by cyrpess company
Mcu （單片機）主要負責基帶處理和控制，無線射頻模塊採用cypress公司的cywusb6934晶元。
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