应用搜索
罗德与施瓦茨已制定一系列的应用指南、应用说明以及应用视频,旨在分享我们在测试与测量仪器方面的知识、原理及方法,并帮助您充分发挥罗德与施瓦茨公司测试与测量仪器的效能。
应用搜索
罗德与施瓦茨已制定一系列的应用指南、应用说明以及应用视频,旨在分享我们在测试与测量仪器方面的知识、原理及方法,并帮助您充分发挥罗德与施瓦茨公司测试与测量仪器的效能。
1142 结果
使用简单的测试装置,包括 NRVD 功率计以及 FSE 频谱分析仪,BER 测量的 CMD 57/59 输出电平可以校准达到高精确度,从而匹配 GSM 11.21(使用调制信号以及比所用时隙高出 + 50 dB 的相邻时隙)。
3月 10, 2000 | AN-No. 1MA24
Modern radio communication systems have to provide higher and higher data rates. As conventional methods like using more bandwidth or higher order modulation types are limited, new methods of using the transmission channel have to be used. Multiple antenna systems (Multiple Input, Multiple Output – MIMO) gives a significant enhancement to data rate and channel capacity. This application note gives an introduction to basic MIMO concepts and terminology and explains how MIMO is implemented in different radio communications standards.
Jul 02, 2009 | AN-No. 1MA142
R&S®SMF100A 微波信号发生器具有远程仿真特性,可通过内置原生 SCPI 命令外的其他命令控制该仪器。 用户可利用此特性来将其他制造商的信号发生器替换为 R&S®SMF100A,而无需更改远程控制代码。 此应用指南描述了如何在一般情况下使用此远程仿真特性。 而且其中还详细说明了对各支持仪器的远程仿真、对各仿真的限制,以及仿真命令与原始命令之间的其他差异。
10月 11, 2016 | AN-No. 1GP92
针对 R&S® ZVA 系列提供的变换器使矢量网络分析仪的频率范围扩展,加入了毫米波范围(EHF 频段)。 该应用指南描述了 R&S® ZVA-Z110 变换器。 此类变换器覆盖 W 频段(75 GHz 至 110 GHz)。 该应用指南中加入了多个测量示例,详细解释了如何配置基于变换器的矢量网络分析仪系统。
10月 09, 2007 | AN-No. 1EZ55
Digital pre-distortion (DPD) is a common method to linearize the output signal of a power amplifier (PA), which is being operated in its non-linear operating range.The R&S K18D application family offers a very easy-to-use method to pre-distort amplifiers without modelling the DUT.However, many engineers in PA design request a simple and easy-to-use tool that delivers a DPD model applicable to any real-world signal.This application note with the accompanying software tool allows engineers without in-depth knowledge of DPD or remote programming to generate a DPD model and verify it against the DUT, based on the results of the K18D application.
Mar 25, 2019 | AN-No. 1EF105
随着近来半导体技术的增强,50 GHz 以上的微波频率范围越来越具有吸引力,尤其是对 802.11ad、微波链路或汽车电子雷达等宽带通信应用而言。为确保这些应用正常工作,低相位噪声是一个重要因素。这需要准确测量相位噪声以增强性能。但是,这些频率范围内的测试装置存在挑战,特别是需要利用两个接收路径的互相关以抑制本振或混频器增加的相位噪声。两个外部谐波混频器结合商用相位噪声测试仪可用于分析相位噪声。理论上而言,此装置可以测量频率高达 500 GHz 的信号源。
2月 05, 2018 | AN-No. 1EF101
借助 R&S®RTB2000/RTM3000/RTA4000 示波器,您可以通过 LAN 实现远程控制与交互。此类示波器结合了基于 USB 的连接标准媒体传输协议 (MTP)。
3月 20, 2017
对于智能手机、平板电脑、蓝光播放器、机顶盒和电视机等音视频设备而言,感知到的视频质量必须满足非常高的标准。音视频设备需要坚守三个主要方面:ı 稳定性(环境影响、对源信号干扰的响应等)ı 性能(切换时间、延迟)ı 合规性(输入和输出格式)通过在所有常见的模拟接口和诸如 HDMI™ 和 MHL™ 等数字接口上进行 R&S 音视频失真分析,可以自动、准确地检测出与预期音视频输出的所有偏差。本文档探讨了相关设置和配置。
10月 15, 2014 | AN-No. 7BM87
R&S®SMW200A GNSS 模拟器可简单便捷地测试接收机设计,避免受到各种潜在干扰信号和干扰器影响。测试用例包括简单的共存模拟,以及使用已定位发射机的复杂干扰场景。
1月 28, 2019
CST® Filter Designer 3D 是达索系统公司 CST Studio Suite® 仿真软件的一部分,是适用于滤波器和双工器的完整全面的综合工具。它可提供丰富的解决方案,涵盖耦合谐振滤波器的设计流程,并且具备基于矢量网络分析仪的调谐功能,可实现更高性能。CST Filter Designer 3D 可协助调谐滤波器硬件,并能显著缩短优化设备以符合预期规格所需的时间。罗德与施瓦茨的 R&S®ZNB 矢量网络分析仪非常适合快速获取数据读数,以便进行实时滤波器调谐。
11月 27, 2019
3GPP TS36.141 规定了针对 EUTRA 基站 (eNodeB) 的一致性测试。R14 规范 (LTE-Advanced Pro) 增加了多项测试,包括针对增强型授权辅助接入 (eLAA) 的测试。本应用指南介绍了如何使用罗德与施瓦茨的矢量信号发生器轻松快速地执行所有必要的性能测试(TS36.141 第 8 章)。通过示例说明具体的手动操作, 使用免费软件程序支持并演示远程操作。LTE 基站发射机 (Tx) 测试(TS36.141 第 6 章)如应用指南 1MA154 中所述。LTE 基站接收机 (Rx) 测试(TS36.141 第 7 章)如应用指南 1MA195 中所述。
5月 11, 2016 | AN-No. 1MA162
现在使用的电子设备通常会产生非正弦、不规则电流,其中谐波电流会被馈入通用供电系统中。设备如要符合传导发射标准,必须监测这种电流。R&S®NPA701 一致性测试仪能够不间断地高效监测电流。
3月 27, 2024
LTE-Advanced 的多个功能可以强化 3GPP R8 首次规定的基础 LTE 技术。LTE(包括 LTE-Advanced 改进)经过 ITU 认证,符合 IMT-Advanced 要求,是一款真正的 4G 移动通信系统。LTE Advanced 的不同技术组件具有不同的市场优先级并且需要不同的测试战略。该应用指南汇总了针对 LTE Advanced(第 10 版)的罗德与施瓦茨测试解决方案,该解决方案使用矢量信号发生器、信号及频谱分析仪以及宽带无线电通信测试仪。
9月 03, 2014 | AN-No. 1MA166
This application note describes how to test and perform a WLAN power measurement using the R&S CMU200 by means of remote-control or manual operation.
Oct 18, 2005 | AN-No. 1CM55
随着 5G 通信服务开始推行和逐渐普及,越来越多支持高频信号的印刷电路板 (PCB) 被生产出来。这些电路板必须具备卓越的频率特性。以前,PCB 的频率特性通过使用测试样板进行抽样检查。Yamaha® MP 系列与 R&S®ZNBT 矢量网络分析仪相结合,可以快速、准确地测量批量生产的产品的高频特性,因此能够全面测量批量生产的 PCB。
1月 27, 2020
Modern automotive radar systems occupy very wide bandwidth in order to have a good location resolution. In most cases the bandwidth is a result of frequency modulation or fast frequency hopping techniques, in some cases also pulse modulation is used. Besides the measurement of the frequency variation over time like deviation and linearity, the verification of emissions according to EN or FCC standards is mandatory. ETSI regulations for measuring peak transmission power from radar operating at 77-81 GHz require 50 MHz resolution bandwidth for the measurements. Publications are available that describe the measurements on pulsed UWB or MB-OFDM signals in detail, for frequency-modulated signals the information is limited.This application note provides information how to perform spectral emission measurements on frequency modulated CW signals with spectrum analyzers using RBW filters with very wide bandwidth, and explains the capabilities and the limiting factors of the Rohde & Schwarz FSW signal and spectrum analyzer to perform this measurement.
Jun 28, 2019 | AN-No. 1EF107
R&S®FSW 提供多种不同的带宽选件,这些选件可与外部谐波混频器结合以将分析仪的频率范围扩展到最高 325 GHz。本应用说明将结合所需的中频频率介绍带宽选件和混频器的可能组合。
6月 16, 2020
Rohde & Schwarz recognizes the potential risk of computer virus infection when connecting Windows®-based test instrumentation to other computers via local area networks (LANs), or using removable storage devices. This white paper introduces measures to minimize malware threats and discusses ways to mitigate risks while insuring that instrument performance is not compromised. The paper discusses the use of anti-virus software, with recommended configuration settings. It also outlines how to keep the Windows® XP operating system properly updated through regular installation of OS patches.
Oct 04, 2012 | AN-No. 1EF73
For measurements of non-connectorized devices, test fixtures, probes or other structures are used to adapt from the coaxial interface of the test setup to the device under test (DUT). For accurate measurements of the DUT, these lead-ins and lead-outs need to be characterized, so that their effects can be mathematically removed, i.e. de-embedded from the measurement results.This application note provides practical hints to accurately characterize and de-embed these lead-in and lead-out structures with R&S Vector Network Analyzers ZNA, ZNB, ZNBT and ZND. As de-embedding is also essential in other test equipment like oscilloscopes, etc., this guide also describes, how lead-ins and lead-outs can be accurately characterized with a VNA and then exported as an S-Parameter file to be used by other test instruments.
Sep 19, 2022 | AN-No. 1SL367
This paper describes the measurement of additive/residual phase noise of power amplifiers or multipliers for example for automotive RADAR sensors at 80 GHz using the interferometric measurement approach in combination with a phase noise and VCO tester R&S FSWP. The setup provides a way to characterize the additive/residual phase noise of amplifiers down to -150 dBc/Hz at 100 kHz offset even in the microwave range at 80 GHz.
Sep 11, 2024 | AN-No. 1EF117
信号故障和异常可能导致电气和电子系统故障。特别是在现场操作中,这些错误可能导致系统停机并产生高成本。因此,快速高效地发现错误并查明原因至关重要。
12月 30, 2015
该应用指南描述了根据 EMS 标准 IEC / EN 61000-4-6 进行 EMC 测量的一般装置以及所需设备。
3月 29, 2007 | AN-No. 1SP31