-
asd
航空航天通信技术一般采用模拟通信的频率调制和数字通信的移相键控调制方法。这有利于充分应用信道带宽和能源。频率调制是在一定程度上改变载波或副载波的频率来传输信息的调制方法。移相键控调制是利用载波或副载波的相位跳变来传输信息的调制方法。移相键控又分二相移相键控、四相移相键控和多相移相键控，其中以四相移相键控和八相移相键控调制方法的效率较高(Aerospace communications technology commonly used analog communication of frequency modulation and the digital communication phase shift keying modulation method. This is helpful for making full use of channel bandwidth and energy. Frequency modulation is changed to some extent carrier or subcarrier frequency to transmit information modulation method. Phase shift keying modulation is the use of carrier or subcarrier phase jump to transmit information modulation method. Phase shift keying and binary phase shift keying, four phase shift keying and multiple phase shift keying, of which four phase shift keying and eight phase shift keying modulation method of high efficiency
)
- 2011-07-13 11:21:08下载
- 积分：1
-
Running_ERD_Commander_2005_from_flash_drive[1]
running erd commander form usb stick
- 2011-10-14 12:48:53下载
- 积分：1
-
LTE
一本介绍第四代移动通信LTE的英文书籍，详细介绍了从发送端到信道到接收端的原理及实现。(One introduces fourth-generation LTE mobile communication in English books, details from the sender to the receiver channel to the principles and implementation.)
- 2011-06-22 21:22:23下载
- 积分：1
-
28181SPVMN-Use
GB28181安防监控标准SPVMN软件的安装和配置说明文件。(The Document of GB28181 Project SPVMN set)
- 2017-04-10 13:27:41下载
- 积分：1
-
yapnb
采用加权网络中节点强度和权重都是幂率分布的模型，双向PCS控制仿真，包含光伏电池模块、MPPT模块、BOOST模块、逆变模块。( Using weighted model nodes in the network strength and weight are power law distribution, Two-way PCS control simulation, PV modules contain, MPPT module, BOOST module, inverter module.)
- 2017-05-15 12:45:04下载
- 积分：1
-
1.56822!lec2
Capacity of Fading Gaussian Channels
- 2011-06-21 23:05:35下载
- 积分：1
-
HCF-Spec183-(Common-Tables-Specification)
HART Communication Foundation - Common Tables Specification
- 2020-11-20 14:49:36下载
- 积分：1
-
ARMprogramdesign
基于ARM的嵌入式程序设计.rar,对arm的学习会有很大的帮助。(ARM-based embedded programming. Rar, on the arm of the study will be of great help.)
- 2008-04-15 17:41:55下载
- 积分：1
-
ts170
可以得到很精确的幅值、频率、相位估计，基于K均值的PSO聚类算法,光纤陀螺输出误差的allan方差分析。( You can get a very accurate amplitude, frequency, phase estimation, K-means clustering algorithm based on the PSO, allan FOG output error variance analysis.)
- 2017-06-01 16:48:51下载
- 积分：1
-
STIM300
STIM300高精度IMU的输出解码程序，MOD93格式，带CRC校验，直接可以运行(MOD93 format with a CRC check can be run directly)
- 2021-05-07 15:31:36下载
- 积分：1
