P0916PY

描述

在卫星通信中，数据传输速率是性能的重要指标。近期的研究发现卫星的平均功耗增加了350%，设计寿命从10年增加到近14年，卫星的外形和复杂度也增加了2到5倍。Shin公司的新一代互联网协议(IP)卫星iPSTAR总容量达到了40Gbps，据称是现有卫星容量的40倍。美国休斯网络系统公司的SPACEWAY每个点波束的下行链路数据速率为800Mbps。现代信息技术需更宽的卫星传输带宽。

当今正在开发的先进宽带通信卫星的设计、制造和部署成本都较高。卫星设计者尽量增加卫星的有效载荷能力，以便在投入使用之后能够最大限度地获取利润。

对设计卫星的工程师来说，这意味着：因为先进的通信卫星要求最大限度地增加数据速率和容量，所以留给设计者的误差余度很小。如果未能分析或者考虑到任何相关参数或者真实效应，都可能导致设备性能下降，从而减少收益。与此相反的情况是设计过于缜密，亦即因为考虑了所有未知因素或者按照最

差情况来设计而导致参数余度过大，从而增加了不必要的成本、部件、重量和复杂度。

图1给出了传统“弯管”式卫星下行链路的整体示意图，它包括了主要的部件，但卫星部分只显示了一个转发器图像。实际上，一个卫星可能带有30到50个转发器。

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主营：世界知名品牌的PLC、DCS系统备件模块

①Allen-Bradley(美国AB)系列产品》

②Schneider(施耐德电气)系列产品》

③General electric(通用电气)系列产品》

④Westinghouse（美国西屋）系列产品》

⑤SIEMENS(西门子系列产品)》

⑥销售ABB Robots.FANUC Robots、YASKAWA Robots、KUKA Robots、Mitsubishi Robots、OTC Robots、PanasonicRobots、MOTOMAN Robots。

⑦estinghouse（西屋）：OVATION系统、WDPF系统、MAX1000系统备件。

⑧Invensys Foxboro（福克斯波罗）：I/A Series系统，FBM（现场输入/输出模块）

顺序控制、梯形逻辑控制、事故追忆处理、数模转换、输入/输出信号处理、数

据通信及处理等。Invensys Triconex:冗余容错控制系统、基于三重模件冗余（TMR）

结构的zui现代化的容错控制器。

⑨Siemens(西门子)：Siemens MOORE，Siemens Simatic C1，Siemens数控系统等。

⑩Bosch Rexroth（博世力士乐）：Indramat，I/O模块,PLC控制器,驱动模块等。

◆Motorola（摩托罗拉）：MVME 162、MVME 167、MVME1772、MVME177等系列。

ABB MODEL 3HAB2211-1 DSQC256A CONTROL BOARD NEW

ABB ASEA BROWN BOVERI DSQC-230,tested warranty

ABB 3HAB-8801-1 Servo Control DSQC266G-NEW

ABB YB 560 103 BD/4 I/O BOARD DSQC 223 YB560103BD4

ABB,ABB Robot,DSQC 331,3HAB 7215-1,S4C,

ABB YB 560 103 BD/4 I/O BOARD DSQC 223 YB560103BD4

ABB SERVO AMPLIFIER RECTIFIER MODULE DRIVE DSQC 249B

ABB DSQC-236G AXIS CONTROLLER BOARD,tested,warranty

ABB DSQC-236G AXIS CONTROLLER BOARD,tested,warranty

ABB DSQC 236B Drive Unit YB560103-CB

ABB DSQC-236G AXIS CONTROLLER BOARD,tested,warranty

ABB PHILIPS YB560103-AN MODULE DSQC211

ABB DSQC ANALOG I/O 355A 3HNE 00554-1/10*LNC

ABB YB-560-103-BD/3 BOARD DSQC 223 YB560103BD3

ABB DSQC-236T AXIS CONTROLLER BOARD,tested,warranty

ABB DSQC-236T AXIS CONTROLLER BOARD,tested,warranty

ABB DSQC 249B Capacitor Board;P/N:3HAA3563-4HA/2

ABB DSQC 256A Board;P/N:3HAB 2211-1/1

ABB DSQC 328 Input/Output 3HAB 7229 NIB

ABB ROBOTICS FINLANDIA INTERFACE DSQC 241 TYPE SR926380

ABB YB161102-AD DSQC103 S2 R/D Exciter Board

ABB DSQC-239 I/O BOARD REMOTE,tested,warranty

ABB I/O Module Part#DSQC-239 Used

ABB Robotic I/O Module Part#DSQC-223 Used

ABB BOARD DSQC 336

ABB DSQC-236G MODULE YB560103-CD/24

ABB Serial Measurement Board DSQC 243 3HAA0001-CP

ABB DSQC239 CARD

ABB,ABB Robot,DSQC 324,3HAB 5957-1,S4C,

ABB DSQC 2498 3HAA3562-ANA/1 POWER SUPPLY-AXIS DRIVES

ABB,ABB Robot,DSQC 335,3HAB 6182-1,S4C,

ABB DSQC 230 Computer board YB 560 103-BN

ABB/Finlandia DSQC 258 P/N:3HAAA3563-AUA/1

ABB DSQC 223 Robotic I/O Module

ABB,ABB Robot,DSQC 325,3HAB 2241-1,S4C

ABB YB-560-103-BD/4 BOARD DSQC 223 YB560103BD4

ABB,ABB Robot,DSQC 504,3HAC 5689-1,S4C,S4C+

ABB DSQC236U AXIS DRIVE BOARD 3HAA-3563-ANA NEW

ABB YB560103-BL S3 DSQC228 SAFETY BOARD

ABB,ABB Robot,DSQC 328 A,3HAC 17970-1,S4C,

ABB DSQC 236G 3HAB 8801-1 Servo Amplifier Amp 3HAB8801

ABB 3HAA-3563 ALA/2 DSQC 252 PC BOARD

ABB Robotics Axis Board DSQC236T YB560103-CE/23

ABB Robotics Axis Board DSQC236T YB560103-CE/23

ABB DSQC-223 DIGITAL I/O BOARD FOR IRB300 ROBOT

ABB DSQC-223 DIGITAL I/O BOARD FOR IRB300 ROBOT

ABB DSQC-223 DIGITAL I/O BOARD FOR IRB300 ROBOT

ABB DSQC 236C Drive Unit YB560103-CC

ABB DSQC-223 DIGITAL I/O BOARD FOR IRB300 ROBOT

ABB DSQC 236G YB560103-CD/26 AXIS DRIVE BOARD REMANNED

ABB YB560103 BE/2 DSQC 224 PCB NEW/1 YEAR WARRANTY

ABB YB560103-BD S3/S4 DSQC223 DIGITAL I/O BOARD

ABB YB560103-BN S3 DSQC230 COMPUTER CONTROL BOARD

ABB DSQC 223

ABB DSQC 230 Board-Communication

ABB Circuit Board DSQC 103 YB161102-AD/1 used

ABB DSQC 224 I/O Board

ABB DSQC230 YB560103-BN/2 YB560103BN/2 ROBOT

ABB Typ DSQC 236C GME Robot System Control Board*Test

ABB DSQC 223 I/O Board

ABB 2668180-107/1 POWER UNIT BOARD DSQC102 YB161103 NEW

ABB MODEL DSQC129 YB161102-BV/1 CONVERTER CARD NEW

ABB DSQC224 YB560103BE SERVO ROBOT I/O YB560103BE/2

ABB YB-560-103-BD/4 BOARD DSQC 223 YB560103BD4

VERY NICE ABB DSQC235A ROBOT SERVO CARD DSQC-235A

ABB PC BOARD DSQC 236T

ABB Circuit Board DSQC 129 YB161102-BV Used

ABB DSQC-239 YB560103-CH/10 REMOTE I/O BOARD DSQC239

ABB DSQC209 YB560103-AL ROBOT SERVO AMP YB560103AL

ABB DSQC-236G YB560103-CD/22 DRIVE BOARD DSQC236G

ABB YB-560-103-BE/2 DSQC 224

ABB YB-560-103-BE/2 DSQC 224 PC BOARD

ABB DSQC236C AXIS DRIVE BOARD YB560103-CC

ABB YB560103-CH DSQC239 REMOTE I/O BOARD

ABB DSQC236G AXIS DRIVE BOARD YB560103-CD

ABB,ABB Robot,DSQC 223,S4

NEW ABB Robotics Axis Board DSQC236T YB560103-CE/24

ABB,ABB Robot,DSQC 239,S4

ABB DSQC104 YB161102-AE/7 RESOLVER DIGITAL BOARD

ABB MODEL YB560103-BD/4 DIGITAL I/O BOARD DSQC223

ABB DSQC 236T Board;P/N:YB560103-CE/28

ABB DSQC236T AXIS DRIVE BOARD YB560103-CE

ABB YB560103-CC DSQC-236C PCB/1 YEAR WARRANTY

ABB Robotic Computer Board DSQC 230 H66

ABB Robot DSQC 223 16×2 Analog I/O Board YB560103-AL

ABB Circuit Board DSQC 223 YB 560103-BD Refurbished

ABB GME PC Board DSQC 236G YB560103-CD/24 56M009G

ABB Board-Type DSQC 236G,P/N:YB560103-CD/23

ABB DSQC236A YB560103-CA8 SERVO ROBOT YB560103CA/9

ABB DSQC236A YB560103-CA8 SERVO ROBOT YB560103CA/7

ABB DSQC236A YB560103-CA8 SERVO ROBOT YB560103CA

ABB Robotics Axis Board DSQC236T YB560103-CE/26

4 ABB DSQC230 ROBOT COMPUTER CONTROL BOARD YB560103-BN

ABB DSQC 236G YB560103-CD/24 AXIS DRIVE BOARD

ABB DSQC 236G YB560103-CD/22 AXIS DRIVE BOARD

ABB DSQC 236G YB560103-CD/22 AXIS DRIVE BOARD

ABB DSQC 236T YB560103-CE/23 AXIS DRIVE BOARD

ABB DSQC 236T YB560103-CE/23 AXIS DRIVE BOARD

ABB Drive Controller Board DSQC 236T!WOW!

ABB DSQC 504 3HAC5689-1 Interface Board!WOW!

ABB Servo Amplifier Module Drive DSQC 249B!WOW!

ABB DSQC 323 3HAB 5956-1

ABB DSQC 320 3HAB 7231-1

ABB DSQC 259 3HAB 2205-1

ABB DSQC 236G YB 560103-CD