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发布时间: 2018 - 10 - 10
噪声是电子电路的特性之一它会导致发射机和接收机之间有用信息的随机干扰会影响无线系统的整体性能信号/频谱分析仪是宽带接收机内部噪声会影响极低幅度信号的测量如何解决呢?今天我们为大家带来解决方案帮助大家提高小信号测量的灵敏度和精度尤其针对噪声附近的信号得益于是德科技 X 系列信号分析仪新增加的测量迹线设置表功能让实验更快的达到测量目的图 1:调整分析仪的设置,可以改善该仪器的本底噪声减小分辨率带宽当分辨率带宽从100 kHz 减少至 10 kHz 时,图 1 中 蓝色迹线 的本底噪声降低了 10 dB。 通过这种技巧可以进一步降低本底噪声。减小频谱仪的衰减通过手动的方式,将分析仪的输入衰减器下调至 0 dB,图 1 中的 红色迹线 显示了设置为 0 dB 衰减后,改善的本底噪声。使用前置放大器配置前置放大器,如图 1 中 绿色迹线 所示,前置放大器改善了系统的噪声系数,降低了本底噪声。是德科技 X 系列信号分析仪具备本底噪声扩展(NFE)功能可以提高分析仪的灵敏度打开NFE,剔除频谱仪自身的噪声NFE 能够识别电流仪表状态信号中的噪声,并可以自动将其从实时频谱结果的测量中删去。图1 中的 红色迹线 显示,应用 NFE 进行测量,可以使本底噪声额外降低8dB。NFE 将有效本底噪声改善了 10 dB使用“过扫描”功能加速扫描使用全数字中频“过扫描”技巧能够显示数字分辨率带宽响应的特点,并纠正这些错误,从而获得更快的扫描速率,取决于特定的设置,扫描时间可以从秒级缩短到毫秒级。“过扫描”对分辨率带宽滤波器产生的影响
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产品 Products
产品名称:

7710A BER测试仪

上市日期: 2016-04-18

- 210 Mbit/s are corresponded

  • 产品概述
  • 产品规格
  • 详细参数

7710A BER测试仪

 

 

This device is an error rate tester to measure bit error from
input data in the transport stream (TS) format.
This device consists of a transmission part (Transmit)
which generates data for the measurement and a receiver
part (Receiver) which measures the data.
A MPEG TS mode and a CONTINUANCE mode are
equipped. The error rate of the TS packet format of each
digital broadcasting can be measured at the MPEG TS mode
and the general error rate by the pseudo random signal can
be measured at the CONTINUANCE mode.

 

- The measurement data up to 210 Mbit/s are corresponded.
- When connecting to Eiden’s OFDM signal generator and
when using the PRBS data generated internally by this
device, the error rate measurement in the MPEG TS format
of the terrestrial digital broadcasting can be realized.
- When connecting to Eiden’s CMMB signal generator, the
error rate measurement for the CMMB data can be realized.
- This device consists of the transmission part which
generates the signal for the measurement and the receiver
part which receives the signal.
* The measurement data in both the MPEG TS packet
format and the PRBS data format can be supplied.
- Packet Error Rate (PER) can be measured.
- Erroneous Second Ratio (ESR) can be measured.
- Null packet filtering function is equipped.
- A GPIB interface and a ETHERNET interface are
equipped for the remote control.
- A touch panel of a seven inch TFT color crystal liquid
display is equipped. Therefore, an user interface having an
excellent operability is supplied.

 

 

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- MPEG TS mode and a CONTINUANCE mode

- 210 Mbit/s are corresponded

相关产品 / Products More
  • 发布时间: 2016 - 04 - 18
    7710A BER测试仪  This device is an error rate tester to measure bit error from input data in the transport stream (TS) format.This device consists of a transmission part (Transmit) which generates data for the measurement and a receiver part (Receiver) which measures the data.A MPEG TS mode and a CONTINUANCE mode are equipped. The error rate of the TS packet format of each digital broadcasting can be measured at the MPEG TS mode and the general error rate by the pseudo random signal can be measured at the CONTINUANCE mode. - The measurement data up to 210 Mbit/s are corresponded...
  • 发布时间: 2016 - 04 - 14
    7709A BER测试仪  This device is a bit error rate tester from the input in the TS (Transport Stream) format.When this device and Eiden’s Advanced BS Digital Signal Generator 3256A are combined, the bit error rate ofstream corresponding to the frame configuration based on ARIB STD-B44 2.0 Revised version (TransmissionSystem for Advanced Wideband Digital Satellite Broadcasting) can be measured.This device provides the environment that the bit error rate measurement against the complex frame configurationcan be measured easily.In addition, this device can measure the bit error rate of the T...
  • 发布时间: 2016 - 04 - 14
    7708A BER测试仪  This unit is error rate measuring device to measure bit error rate from TSpacket of various digital broadcasting.  ・Corresponding to measuring rate of max. 90Mbits/s.・Possible to measure SPI input or serial input.・For TS packet length of SPI input, 188bytes or 204bytes is recognizedautomatically.・By using built-in PRBS of Eiden’s OFDM Modulator “3511B”, BERmeasurement in OFDM demodulator, that has no output function for TSoutput per each layer, is possible.・Switching indication of various measurement information is possible.・Null packet filtering function is e...
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