卫星转发器

Ku，Ka波段卫星转发器

Ku and Ka bands Satellite Transponder

介绍了TCM／8PSKDR／IDR和QPSK／IDK的工作方式以及主要传输参数，就两者对卫星转发器频带和功率利用率进行了比较；

It introduces the operating methods and main transmission parameters of TCM / 8SPSK / IDR and QPSK / IDR , compares their usage of frequency band and power of satellite transponder .

Ku频段通信卫星转发器的发展

Development of ku Band Communication Satellite Transponders

本文介绍了转发器的结构特点及Ku，Ka波段卫星转发器的现状。

This paper introduces the structural characteristics of the transponder and the status of the Ku and Ka bands satellite transponder .

卫星转发器的交调特性及最佳工作点

The intermodulation characteristic and the optimum operating point for satellite transponders

卫星转发器中三阶互调产物数量的精确计算

On the accurate counting of third-order intermodulation products in a satellite transponder

矢量网络分析仪在通信卫星转发器地面测试中的应用技术

Technology of using vector network analyzer in ground testing for communication satellite repeater

卫星转发器载波互调噪声比的工程计算

An algorithm for measuring carrier to intermodulation noise ratio in a satellite transponder

通信卫星转发器I/O特性地面测试的自动化测试方法研究

Automatization Testing Measurement of Communiostion Satellite Transport I / O Characteristic Ground Surface Testing

研究了在上行干扰条件下软限幅卫星转发器中滤波器带宽对系统性能的影响。

The effect of filter bandwidth in soft limiting satellite transponder with uplink interference is studied .

射频多址接入技术主要解决不同地理位置上的地球站信号如何共用一个卫星转发器问题。

The aim of using radio multiple access technique is to solve the problem of how to share a satellite transponder by the earth stations in different geographical locations .

从非法信号攻击卫星转发器的原理入手，探讨了有线电视前端卫星信号安全接收的措施，对保证有线电视的安全播出具有重要的参考意义。

This paper discusses the ways how to receive satellite signal safely from the principle of illegal signal attacking satellite repeater . This has important significance for CATV safety transmission .

在将来条件允许的情况下，可以增加卫星转发器的带宽，引入新的数据广播协议，即可实现交互功能、流媒体等其他实时性的数据广播业务。

With the addition of satellite bandwidth and the introduction of new data broadcasting protocol , the system can achieve interactive function . It can provide real-time data broadcasting services such as stream-media .

恒包络调制所产生的信号具有恒定包络，能够工作在高功率放大器的非线性放大区，充分利用卫星转发器的资源，因此，恒包络调制已在卫星通信领域得到广泛的应用。

The signal generated by constant envelope modulation technology has constant envelope , which has good performance on fully using satellite resource , when the high-power amplifier is working on the non-linear amplify state .

文章介绍了通信卫星转发器中使用的自均衡类椭圆函数滤波器的设计方法，这种滤波器采用了四腔双模列式结构，实现了一个虚轴和一个实轴传输零点对的传输特性。

A general design procedure is presented for self equalized pseudoelliptic filter used for communication satellite in a 8 pole asymmetric dual mode in-line configuration the filter realized useful transmission characteristics with a transmission zero pair at real and imaginary axes .

为了简化数字卫星码流转发器的设计和降低其物理成本，提出了一种基于FPGA实现同步传输流转化为异步串行流的设计方案。

In order to simplify the satellite digital TV code stream transmitter ′ s design and descend its cost , a system design based on FPGA is proposed .

军事卫星透明转发器特点及抗干扰仿真系统设计

Characteristics of Military Satellite Transparent Transponder and Design of Simulating System for Anti-jamming

电磁或射频干扰，但该干扰直接造成卫星或转发器的物理损失除外。

Electromagnetic or radio frequency interference , except for physical damage to the Satellite directly resulting from such interference .

通信卫星Ka波段转发器技术的研究

Communication Satellite Ka - Band Transponder Technology Research

广播卫星大功率转发器的使用，使小功率卫星上行系统得以使用。

With the use of the high-power broadcast satellite transponder , the low-power satellite transmission system could be used .

针对风云二号气象卫星星上转发器放大器的非线性特性及其带来的交调问题进行了分析。

This paper presents analysis of nonlinearity and its resulitedintermodulation ( IM ) effect of the amplifier of the satellite transponder .

分析了军事卫星通信透明转发器的特点，设计了其用于抗干扰技术研究的计算机仿真链路模型，提出了仿真系统设计的总体方案和抗干扰性能评估方法。

This paper analyzes the characteristics of a military satellite transparent transponder , describes the computer simulation link model for study of anti-jamming technologies and proposes the overall project of the simulating system and the evaluating method of anti-jamming performance .

FPGA在卫星数字电视码流转发器设计中的应用

Application of FPGA in the Design of Satellite Digital TV Code Stream Transmitter

2011年01月09日印度太空研究组织本周表示，2011年将至少发射两颗大型通信卫星，以度过转发器缺乏的难关。

2011-01-09 The Indian Space Research Organization ( ISRO ) this week said it would launch two communication satellites this year to reduce the scarcity of transponders .

所谓卫星移动通信系统是指由许多可移动的卫星通信终端在卫星转发器支持下构成的通信系统。

So-called satellite mobile communication system is the one composed of many mobile terminals supported by a satellite reaper .

中科院国家授时中心根据多台站卫星时间比对经验，提出利用卫星双向比对技术进行卫星测距（称转发器定轨）。

Based on the experience of time transfer on multi-stations , a new method of satellite ranging was proposed by National Time Service Center , the Chinese Academy of Sciences .

在GEO卫星轨道确定中，系统误差如卫星钟差、测站钟差、卫星转发器时延、地面站设备时延和测站偏差等，已经成为GEO卫星定轨数据处理中的关键问题。

One of the most important problems in the data processing of GEO satellite orbit determination ( OD ) is the validation and control of systematic errors , such as satellite clock error , receiver clock error , time delay of satellite transponder and tracking station equipment bias .

本文提出了在卫星定位通信系统中采用四相扩频（Q-SS）技术，并沿用瑞士人给出的卫星转发器功率放大器的数学模型，推导了Q-SS信号通过卫星转发器后输出的表示式；

This paper puts forward the application of a Quadri phase spread spectrum ( Q SS ) technique in the system of satellite position and communication , adopts a model of satellite transponder which is given by Swiss , and deduces Q SS expressions at the output of satellite transponder .