systemview 中文意思是什麼

This paper mainly focuses on the noise limiting by means of the direct sequence spread spectrum ( dsss ) and the analysis of the transmission performance of the plc and some digital modulation technology. the contents of the paper is as follows : 1 ) the technical feasibility is proved after simulating noise limiting principle of dsss by means of systemview, the simulation software ; 2 ) a kind of band pass filter ( bpf ) is realized according to the requirement of filter and the principle of butterworth approximation, which satisfies the index of performance of dsss. 3 ) the low voltage plc system includes the sc1128, the specific modulation / demodulation ic, the bpf filter and other circuit components, furthermore, the control function of system is realized by means of the personal computer and the microcontroller

本課題在對低壓電力線的傳輸特性和數字調制技術進行分析的基礎上，將通信理論中的直接序列擴頻技術（ dsss ）用於解決低壓電力線通信的干擾問題，主要研究內容如下： （ 1 ）用通信模擬軟體systemview對dsss技術的通信和抗干擾原理進行模擬分析，分別對時域和頻域下採用dsss技術前後接收信號的頻譜進行分析，驗證dsss技術在本系統中的可行性； （ 2 ）由dsss技術對濾波系統的要求，根據濾波理論分析了巴特沃思型濾波器的逼近原理並設計了合適的濾波電路； （ 3 ）用調制解調晶元sc1128和自行設計的濾波器加之輔助外圍電路，構造出低壓電力線載波通信系統，並採用atmel公司的單片機設計了接收和發射電路的微控制器； （ 4 ）分別對採取抗干擾措施前後輸入和輸出信號進行對比實驗，並對結果進行分析，驗證了dsss技術對干擾信號的抑制作用。

The application of systemview software to communication principle experiment teaching

軟體在通信原理實驗教學中的應用

In the second part, introduces the theory of wireless lan based on the ofdm, supplies the corresponding simulation analysis by systemview software, compares two channel coding by simulatation, gives a advice to use convolution coding, and analyses its ber

第二部分通過分析無線局域網的基本原理，以及採用模擬軟體分析了ofdm在無線局域網中的應用。通過模擬比較了兩種通道編碼的性能，並做了相應的誤碼率分析，得到了有用的結論。建議採用卷積編碼。

By systemview, hdl simulation and fpga verification, the results showed that the decoder met commercial ic requirements

經systemview ， hdl模擬及fpga驗證，結果表明:所設計的數字視頻解碼電路的各項性能達到了晶元商用要求。

In order to deepen the research on multiuser detection and speed up the process of its entering into the commercial markets, we have studied the problem of multiuser detection based on cdma systems in the paper. from the system simulation view, we have given the structure of decorrelation detector and the one of mmse detector, respectively and designed the two corresponding tokens to expand the functions of cdma library in systemview

為了推動多用戶檢測理論研究工作的深入開展和加速工程化進程，本文從系統模擬角度對多用戶檢測進行了研究，提出了解相關多用戶檢測器和最小均方誤差多用戶檢測器的結構，設計了多用戶檢測模塊，解決了systemview通信庫欠缺該功能模塊的問題。

We presented an applicable demonstrated circuit based on commercial - off - the - shelf integrated circuit, and with the tool of systemview some computer simulations verified the performance of this circuit. 3

設計了一種用現有商用集成電路實現的參考法dsss原理電路，用sysremview軟體，通過計算機模擬給出了性能評價。

First, after detailed analysis of the std - cdma communication system based on cc - codes, the ber performance is simulated by using systemview software

首先，論文對基於完全互補碼的串列時分cdma通信系統進行了詳細分析，並採用systemview模擬軟體進行了性能模擬。

Based on bluetooth specification version 1. 1, this thesis presents detailed introduction and analysis on low - layer protocols of bluetooth protocol stack. systemview is adopted to simulate bluetooth system

作者首先以藍牙規范1 . 1版本為基礎，詳細介紹和分析了藍牙底層協議? （無線層和基帶規范）的具體內容。

When the channel changes rapidly, this proposed dynamic algorithm is efficient. other than above, this paper also studies the character of ofdm under multipath fading and gives the baseband computer simulation by systemview. at last, it performs ofdm dsp hardware plug - in simulation

利用systemview軟體進行模擬多徑通道下ofdm系統性能模擬，並探討了模擬過程中的一些問題，最後搭建了ofdm基帶模擬系統，並利用tms320c54dsp晶元，進行了ofdm硬體嵌入式模擬。

Has participated in residencies at different centers of the ibm international technical support organization : itsc boeblingen for cics application interface, isc gaithersburg for ad cycle, and itsc poughkeepsie, twice, for systems management and systemview

他曾參與ibm國際技術支持組織不同中心的工作：在itsc boeblingen從事cics application interface方面的工作，在isc gaithersburg從事的是ad / cycle方面的工作，他在itsc poughkeepsie工作過兩次，分別從事systems management和systemview方面的工作。

Signal forming and different demodulation of gmsk baseband signal are mainly discussed in the dissertation. gauss filter, phase integral, sin table, matched filter, calculate angle, bit - synchronization 、 output filter 、 a / d 、 d / a and etc of gmsk baseband signal are carefully studied through software emulation in systemview environment. the modulation and demodulation of gmsk baseband signal are carried out by the way of using tms320vc549 of ti to integrate software and hardware

本文重點討論了gmsk基帶信號的形成以及gmsk基帶信號的差分解調，系統在systemview的環境下進行了軟體模擬，通過對系統的模擬工作，仔細的研究了gmsk基帶信號的高斯預濾波器、相位積分、 sin查表、匹配濾波器、相角計算、位同步、幀同步、輸出濾波、 a / d和d / a等。

Basically the paper configured to use series - parallel ways to accomplish quick phase capture, and therefore realize telemetry and communication at the same time. the paper gives the simulation ways of matlab, systemview and vhdl of the method mentioned above. and the simulation results show that the complex system can realize the theoretical target, including communication and telemetry simultaneously, finishing real - time measuring with high accuracy and huge range, realizing system function in unrealistic circumstances

本論文在前面章節理論分析和推導的基礎上，應用matlab 、 systemview和vhdl硬體描述語言等模擬軟體編制時間流和數據流程序，對系統的技術性能進行模擬，結果證明復合系統能夠較好地完成系統設計指標：同時完成擴頻通信和測距任務，實現高精度、大量程、實時地測距，實現惡劣通道環境下系統的正常工作。

Based on the principle of gmsk, analyzing the form of gmsk modulation and demodulation, we have completed the system simulation of gmsk in the systemview platform, at the same time, combined with hardware and software, we have realized modulation and demodulation of gmsk with the dsp chips tms320vc549

在熟悉gmsk調制解調原理的基礎上，分析了gmsk正交數據機的基帶構成，完成了在systemview平臺下gmsk數據機的系統模擬，並將模擬演算法用於tms320vc549dsp晶元，使用軟硬體結合的方式完成了gmsk基帶信號的調制解調，為國內研製ais系統儲備了關鍵技術。