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CMW500的资料不多，这是非常不错的参考资料R&s CMW 500Contents overviewContents overview1 Preparing the Instrument for Use2 Getting Started3 System Overview4 Basic Instrument functions5 Remote Control6 System Command Reference7 General Purpose RF Applications8 GSM Applications9 WCDMA Applications10 WiMAX Applications11 AnnexesNote about Faceless InstrumentsChapter 1 of this manual gives an overview of the front panel controls and connectorsof the R&s CMW 500 Wideband Radio Communication Testers with display and givesall information that is necessary to put the instrument into operation and connectexternal devices. The application examples in Chapter 2 and the following chapters arealso based on a r&S CMW 500 with displayThe measurement functionality of the two instrument types is identical. You can test allmeasurement examples reported in this manual using an r&S CMW 500 withoutdisplay that is controlled from the Graphical User Interface displayed on an externalmonitor or pcFor specific information concerning faceless instruments refer to your quick start guide.Operating Manual 1202. 3986.32-03R&s CMW 500ContentsContents1 Preparing for Use…日日画1.1 Front Panel Tour1.1.1 Utility Keys…1.1.2 Status LEDs and Standby Key1.1.3 Display…1.1.4 Softkeys and Hotkeys1.1.5 Setup Keys1.1.6 Data Entry Keys223334561.1.7 Rotary Knob and Navigation Keys1.1.8 Front panel connectors1.1.8. 1 RF Connectors1.1.8.2 LAN Connector1.183 SENSOR Connector1.184 USB Connectors1.1.8.5 AF Connectors888881.2 Rear panel tour:::::B:1.3 Putting the Instrument into Operation1.3.1 Unpacking the instrument and checking the shipment1.3.2 Instrument Setup...............001.3.3 Bench Top Operation1.3.4 Mounting in a 19 Rack121.3.5 EMI Protective measures131.3.6 Connecting the Instrument to the AC Supply131.3.7 Power on and off…131.3.8 Replacing Fuses141.3.9 Standby and ready state141.4 Maintenance15Operating manual 1202.3986.32-03R&s CMW 500Contents1.4.1 Storing and Packing151.5 Connecting External Accessories…………,…,…,…,…,…,…,………,……….151.5.1 Connecting a mouse161.5.2 Connecting a Keyboard161.5.3 Connecting a Printer1.5. 4 Connecting a monitor1.5.5 Connecting a LAN Cable788916 Starting the R&scMW500 and Shutting D。wn…,.....,.,…,,,191.7 Remote Operation in a LAN...........-.201.7.1 Assigning an IP Address201.7.2 Remote Desktop Connection221.8 Windows xP国国国面1.9 Firmware Update…,,…,,,,,,,,,",…,…222 Getting Started,…,…,…252.1 Basic tasks.…252.1.1 Accessing Dialogs252.1.2 Using Keyboard Shortcuts272.1.3 Data entr272.14 Using Front Panel Keys.……282.1.5 Using an External Keyboard2.1.6 Task bar302.2 Sample Session…312.2.1 Generating an rf signal312.2.1.1 GPRF Generator2.2.2 Measuring an RF Signal332.2.2.1 GPRE Power333 System Overview…363.1 Generators363.1.1 Generator Control363.1.2 RF Path Settings(Generators)37Operating manual 1202.3986.32-03R&s CMW 500Contents3.2 Measurements383.2.1 Measurement control383.2.2 Connection Control(Measurements393.2.3 Statistical Settings3. 2. 4 Statistical Results3.2.4.1 Statistics Type423.2.4.2 Detectors433.2.4.3Peak∨ alues.433244 Averaging…443.245 Standard deviation143.2.5 Trigger Settings453.2.6 TX Measurements453.2.6.1 Power results463.2.6.2 Modulation accuracy3.2.6.3 Adjacent Channel Power(Spectrum)493.2.6.4 Spectrum Emission Mask493.2. 6.5 Code domain power503.2.6.6 Multi-Evaluation measurements4 Basic Instrument Functions534.1.1 Startup Dialog534.2 Utility Dialogs544.2.1 Reset Dialog..4.2.2 Print Dialog554.2.3 Save/Recall Dialog564.3 Setup Dialog…,,,,…574.3.1 Activating Options584.3.2 Selftests…594.3.2.1 General test features604.3.2.2 Board Tests614.3.23 System Tests…62Operating Manual 1202.3986.32-03R&s CMW 500Contents4.3.2.4 Performing Selftests24.3.25 Selftest Parameters634.3.3 Reference Frequency654.3.3.1 Reference Frequency Settings654.3.4 Measurement Controller Dialog664.3.5 Generator Controller Dialog665 Remote Control685.1 Remote Control Operation685.1.1 Establishing and Testing a LAN Connection705.1.2 Switchover to remote control5.1.3 Return to Manual Operation715.2 Messages国国国面…725.2.1 VXI-11 Interface Messages725.2.2 GPIB Bus Interface Messages..725.2.3 Device Messages(Commands and Device Responses)735.2. 4 SCPl Command structure and syntax735.2.4.1 Common commands745.2.4.2 Instrument-Control Commands5.2.4,3 Structure of a command line765.2.4.4 Responses to Queries5.2.45 SCPI Parameters,775.2.4.6 Use of SCPl Subsystems95.3 R&s CMW Software and command structure5.3.1 General command structure5.3.2 Firmware applications815.3.3 Measurement Contexts and views5.4 Control of the instrument825.4.1 Measurement Control825.4.1.1 Measurement states and measurement control commands835.4.1.2 INITiate: : MEASurement84Operating manual 1202.3986.32-03R&s CMW 500Contents5.4.1.3 ABORt: MEASurement 8554.14sTOP:< Application> MEASurement>.,……855.4.1.5 Measurement substates855.4.2 Statistical Settings865.4.3 Retrieving Measurement Results885.4,3. FEtCh.? Command885.4.3.2 READ.? Command∴8954.33 Retrieving Single∨ alues and traces.…5.4.4 Reliability Indicator5.4.4.1 Common Reliability Indicator……5.4.5 Multi-Evaluation Measurements5.4.6 Generator control925. 4.7 RF Path Settings945.4.8 Resource and path Management∴945.4.8. 1 Basic RPM Principles5.4.8.2 Queuing of Measurements∴9654.83 Causes for task Conflicts5.4.8.4 Monitoring Measurement and Generator States995.5 Command Processing...:::::B:995.5.1 Input Unit1005.5.2 Command Recognition1005.5.3 Data base and instrument hardware1015.5.4 Status Reporting System1015.5.5 Output Un1025.6 Status Reporting System1025.6.1 Overview of status Registers1035.6.2 Structure of an SCPl Status Register…1035.6.2.1 Description of the five status register parts1045.6.3 Contents of the Status Registers1055.6.3.1 STB and sre.105Operating manual 1202.3986.32-03R&s CMW 500Contents5.6.3.2 IST Flag and pPe.1065.6. 3.3 EsR and ese∴1075.6.3 4 STATus: OPERation1085.6.3.5 STATus QUEStionable1085.6.4 Application of the status reporting s ystem1085.6.4.1 Service Request1085.6.4.2 Serial poll1095.6.4.3 Parallel poll1095.6.4.4 Query of an Instrument Status1105.64.5 Error queue.….115.6.5 Reset Values of the Status Reporting System1116 Command reference∴∴11361 Special Terms and Notation…,…………,…,…,………,…,…,,…,………………1136.2 Common commands1156.3 Instrument-Control commands.117631 MMEMory Commands…..,,,…,,……1176.3.2 Ref Frequency Commands1206.3.3 STATus Commands1216.3.4 SYSTem Commands1256.3.5 LAN Services1256.3.6 Miscellaneous Instrument Settings1286. 4 Alphabetical List of Commands System)1317 GPRF Applications1337.1 GPRF Measurements and generators1337.1.1 General Purpose RF Generato.1337.1.1.1 GPRF Generator(Constant Frequency)1337.1.1.2 Arbitrary RF Generator(Option R&S CMW-B110 A)1347.1.13 List Mode∴1357.1.2 Power measurement1357.1.2.1 Test Setup…135Operating manual 1202.3986.32-03

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【实例简介】通信信号调制制式的自动识别和调制参数的自动估计是非协作通信和软件 无线电中的主要问题。非协作通信是通信中的一个分支，在民用或军用场合都 有重要的应用，它需要接收机在先验知识不足的前提下监视空间通信信号的活 动情况，并截获其传输的信息内容；软件无线电是未来通信中的一个关键技术， 它需要接收机能在同一个硬件平台上自动完成多种体制、多个频段的通信和相 互间的切换。这里面都需要解决通信信号制式的自动识别和参数估计。另外， 信噪比（SNR）是接收信号的一个关键参数，它对通信系统的性能有着重要影响， 对它的估计也十分必要。直接扩频序列信号（DSSS）由于具有极低的功率谱密 度，如何在非协作通信中不知道扩频序列的前提下对其进行检测和估计，是一 个具有很强的应用背景同时富有挑战性的课题。本文以通信信号的统计特性为 基础，分别对这些问题进行了研究和探索，主要包括： 首先，使用统计模式识别的方法，综合决策树识别器和神经网络识别器的 优点，提出了一种混合识别器，它在不依赖于先验的调制参数和信噪比的条件 下能对常用的11种数字调制信号CW、BPSK、QPSK、OQPSK、16QAM，32QAM， 64QAM、2FSK、4FSK、GMSK和OFDM进行准确的识别。 其次，研究了非协作通信中观测信号调制参数的估计问题。对M-PSK及 M-QAM信号滚降系数的研究表明，接收机中滚降系数不准确对系统性能的影响 非常小，因此我们在设计接收机时可以不必考虑滚降系数的影响，而只需固定 一个值即可。对M-FSK号调制指数的研究表明，我们提出的估计算法能够显著 改善时钟同步性能，并且估计结果不影响最后的误码率。对M-PSK、M-QAM 及OQPSK信号波特率的研究表明，我们提出的波特率估计算法能够在较短的观 测长度下取得较高精度的波特率估计值，并且估计结果完全满足解调器所需的 精度要求。 再次，研究了观测信号SNR的估计问题，提出了两种不依赖于辅助数据的 估计算法，一种是改进的基于最小描述长度原理和特征值分解的算法，另一种 算法基于Gibbs抽样原理。这两种算法均能在AWGN信道和多径信道中精确估 计出信号的SNR。此外，第二种算法还可以给出信道的估计信息。 最后，利用扩频序列的强自相关特性和弱互相关特性，研究了DSSS信号在 非协作通信中的检测和参数估计问题。算法以接收信号自相关函数的累加为基计DSSS信号的波特率、chip速率和载波频率，然后提出了两个测度函数， 一个对扩频序列进行同步，确定出扩频序列在观测序列中正确的起始位置；另 一个在扩频序列同步的基础上估计序列中每一个chip的具体数值。计算机仿真 结果验证了理论分析的正确性。 本论文的研究结果表明：通过采用本论文提出的调制信号自动识别算法和 相关的调制参数估计算法，可以有效的提高非协作通信和软件无线电中接收机 的工作性能和实用化程度。

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胡宝清模糊理论基础的第二版，很清楚、详细的对模糊理论的知识进行了介绍

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