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rjwxdpt
- 软件无线电技术是用于卫星导航和第三代移动通信(3G) 数据处理和计算的最优解决方案。运用基于FPGA的So PC 嵌入式设计方法构造软件无线电系统,提高了对动态实时信号的处理能力。设计完成无线通信体系结构,以及ADC 模数转换,数字下变频,CPU 中央处理器,DSP 运算单元,PCI 桥以及数据控制等模块的详细组成。相对于目前常规系统,该系统在功耗和体积方面可节省30 以上,对高速数据流的处理和计算能力有显著提高,可以应用于Cellular/ PCS 基站,GPS 抗干扰接收机,相控阵接收机,频
3xxx-Axis-Attitude-control-system
- satellite 3 axis control
BEIDOUWeixing
- 北斗卫星接口文件 北斗卫星导航系统 空间信号接口控制文件 （测试版） -Beidou satellite interface file Beidou satellite navigation system space signal Interface Control Document (Beta)
BeiDou-ICD
- 北斗卫星导航系统空间信号接口控制文件，这是正式版-BeiDou Navigation Satellite System Interface Control Document
satellite
- about control satellite
Inmarsat-101
- inmarsat Terminal Components for Typical Aero-H/H+ – Satellite Data Unit – Radio Frequency Unit – High Power Amplifier – Cabin Interface Unit (R-C) – Control Display Unit (DLC-800, MIDU, GUI, etc.) – High Gain Antenna System
QPSK
- Direct sequence spread spectrum (DSSS) communication systems has been widely used in these years for its advantage of wide spectrum, low working Signal-to-Noise ratio (SNR), anti-interference, anti-multipath effect and capability of LPI and LPD.
ldpc_cc
- Low-density parity-check convolutional codes offer the same good error-correcting performance as low-density parity-check block codes while having the ability to encode and decode arbitrary lengths of data. This makes these codes well suited