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遥测解调
相关语句
  telemetry demodulation
     The effect of interference on a Carrier-to-Tracking Loop (CTL) is analysed, and the critical value is determined under the tracking condition of CTL. The analysis of the effect of interference on a telemetry demodulation subsystem is emphasized.
     分析了干扰对载波跟踪环路的影响,确定了载波环保持锁定的临界条件,重点分析了干扰对遥测解调分系统的影响。
短句来源
     In telemetry demodulation system,the NRZL code is usually used as the output code pattern ,so it is necessary to convert the other code patterns to NRZL code.
     在遥测解调分系统中 ,通常采用 NRZL 码作为输出码型 ,这就需要将系统输入的其它码型反变换为 NRZL 码。
短句来源
  “遥测解调”译为未确定词的双语例句
     In this paper,a PCM telemetry synchronization decoder is designed. A strategy for capturing the PCM telemetry data of transient process from the continuous PCM stream with buffer RAM is presented.
     本文设计了一种用于PCM遥测的同步解调器 ,提出了针对瞬态过程PCM遥测解调数据的采集策略 ,利用缓冲PAM从连续不断的PCM码流中捕捉到瞬态过程。
短句来源
     The characteristics of the branch I of the USB (Unified S Band system)telemetry terminal are analyzed,and a practical project of the channel test is proposed.
     分析遥测解调分系统中 I支路数据传输的特点 ,制定了相应的测试方案。
短句来源
  相似匹配句对
     Module for Demodulation and Signal Recognition Telemetry
     解调、信号识别遥测模块
短句来源
     A STUDY ON MODULATION/DEMODULATION FOR AN ANALOGOUS TELEMETERINGSYSTEM IN SATELLITES
     卫星模拟遥测调制——解调方式的研究
短句来源
     Telemetry of Intracranial Pressure
     颅内压的遥测
短句来源
     the ways of modulation and demodulation;
     调制和解调的方式;
短句来源
     Telemetering vibration with optical method
     振动的光学遥测
短句来源
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This paper discribes the effect of co-channel interference on the ground TT&C station between satellite-ground links.The effect of interference on a Carrier-to-Tracking Loop (CTL) is analysed, and the critical value is determined under the tracking condition of CTL.The analysis of the effect of interference on a telemetry demodulation subsystem is emphasized. The interference has an effect on the Bit-Error-Rate (BER) by two ways. On the one hand, the reference phase jitter caused by a carrier recovery loop will...

This paper discribes the effect of co-channel interference on the ground TT&C station between satellite-ground links.The effect of interference on a Carrier-to-Tracking Loop (CTL) is analysed, and the critical value is determined under the tracking condition of CTL.The analysis of the effect of interference on a telemetry demodulation subsystem is emphasized. The interference has an effect on the Bit-Error-Rate (BER) by two ways. On the one hand, the reference phase jitter caused by a carrier recovery loop will have an indirect effect on BER. On the other hand, the interference introduced directly into a coherent detection device will directiy give raise to increase BER.The results of the effects can be expressed in terms of the loss of input Signal-to-Noise ratio E_b/N_0 at the same BER.

文中讨论了星地链路中同信道干扰对地面TT&C站的影响;分析了干扰对载波跟踪环路的影响,确定了载波环保持锁定的临界条件,重点分析了干扰对遥测解调分系统的影响。干扰通过两个途径影响误码率:一是通过载波恢复环路,造成参考相位抖动,间接影响误码率;二是直接进入相干检测设备,直接影响误码率。这些影响的结果可用同等误码率下输入信噪比E_b/N_0的损耗表示。

In this paper,a PCM telemetry synchronization decoder is designed.A strategy for capturing the PCM telemetry data of transient process from the continuous PCM stream with buffer RAM is presented.The FPGA is used to complete the bit synchronizer and the frame synchronizer.The whole telemetry decoder is embedded in a PC card ,which is used for decoding 4Mbps-bit rate.The virtual instrument(VI)soft panel is programmed by using Labwindows/CVI to achieve the control of the hardware and the display,processing,restoring...

In this paper,a PCM telemetry synchronization decoder is designed.A strategy for capturing the PCM telemetry data of transient process from the continuous PCM stream with buffer RAM is presented.The FPGA is used to complete the bit synchronizer and the frame synchronizer.The whole telemetry decoder is embedded in a PC card ,which is used for decoding 4Mbps-bit rate.The virtual instrument(VI)soft panel is programmed by using Labwindows/CVI to achieve the control of the hardware and the display,processing,restoring of the decoded multi channel data.

本文设计了一种用于PCM遥测的同步解调器 ,提出了针对瞬态过程PCM遥测解调数据的采集策略 ,利用缓冲PAM从连续不断的PCM码流中捕捉到瞬态过程。并用FPGA技术实现码同步器和帧同步器 ,使整个遥测解调器在单板PC插卡上实现并具有较低的成本 ,该方案用于 4MHz码速率的数据解调。用Labwindows/CVI编制了虚拟仪器面板 ,完成对硬件的控制和瞬态多路解调数据的曲线显示、处理和存储等功能

There are a lot of digital signal code patterns can be used in telemetry systems.In telemetry demodulation system,the NRZL code is usually used as the output code pattern ,so it is necessary to convert the other code patterns to NRZL code.In this paper,some converting circuits based on matching filtering, threshold decision,sample,shift and XOR are introduced,which have been used in telemetry system education.

在遥测系统中有许多种数字信号码型可以使用。在遥测解调分系统中 ,通常采用 NRZL 码作为输出码型 ,这就需要将系统输入的其它码型反变换为 NRZL 码。文中介绍一种在实验教学遥测系统中采用的利用匹配滤波、门限判决、采样、移位、异或的手段来实现码型反变换的方法。

 
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