首页> 外国专利> TRANSMITTER AND RECEIVER FOR MULTI-RATED DELAY MULTIPLEXING DIRECT SPREAD SPECTRUM COMMUNICATION SYSTEM, AND MULTI-RATED DELAY MULTIPLEXING DIRECT SPREAD SPECTRUM COMMUNICATION SYSTEM

TRANSMITTER AND RECEIVER FOR MULTI-RATED DELAY MULTIPLEXING DIRECT SPREAD SPECTRUM COMMUNICATION SYSTEM, AND MULTI-RATED DELAY MULTIPLEXING DIRECT SPREAD SPECTRUM COMMUNICATION SYSTEM

机译:多速率延迟多路直接扩展频谱通信系统的发送和接收器以及多速率延迟多路直接扩展频谱通信系统

摘要

A multi-rated delay multiplexing direct spread spectrum communication system the multiplicity of which can be changed. The system performs control operation as quickly as possible by suppressing the output fluctuation within a narrow range so as to perform constant power transmission. A gain-variable amplifier (21) is provided at the succeeding stage of a modulator (19) and the gain of the amplifier (21) is controlled by a control signal generated based on the detection signal of the output of a power amplifying section (23). A detecting and control section (21c) detects the RF output of a delay multiplexing spread signal by means of a diode, finds the average power by means of an integrator, and equalizes the output of the amplifier (21) to a comparation voltage by means of a control signal which is generated on comparing the average power with the comparation voltage. However, when the output of the amplifier (21) is equalized to the comparation voltage, the time constant of the integration performed by the section (21c) is kept small for a fixed period of time by using a control signal representing a simplex/multiplex part. Consequently, a multiplexing switching section can quickly control the power. IMAGE
机译:可以改变其多重性的多速率延迟多路复用直接扩频通信系统。该系统通过将输出波动抑制在窄范围内来尽可能快地执行控制操作,以进行恒定的功率传输。在调制器(19)的后级设置增益可变放大器(21),并且该放大器(21)的增益由基于功率放大部分的输出的检测信号生成的控制信号来控制( 23)。一个检测和控制部分(21c)通过一个二极管检测一个延迟多路复用扩展信号的RF输出,通过一个积分器找到平均功率,并通过一个放大器将放大器(21)的输出均衡为一个比较电压。在比较平均功率和比较电压时产生的控制信号的变化。然而,当放大器(21)的输出等于比较电压时,通过使用表示单工/多路复用的控制信号,将由部分(21c)执行的积分的时间常数在固定的时间段内保持较小。部分。因此,多路复用切换部分可以快速地控制功率。 <图像>

著录项

  • 公开/公告号EP1037422A4

    专利类型

  • 公开/公告日2002-03-20

    原文格式PDF

  • 申请/专利权人 SHARP KABUSHIKI KAISHA;

    申请/专利号EP19980947923

  • 发明设计人 OKAMOTO NAOKI;

    申请日1998-10-16

  • 分类号H04J13/00;H04B7/005;

  • 国家 EP

  • 入库时间 2022-08-22 00:34:58

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