-
BlobTest
Blob Test extends SQLite Test Source Code for Andriod.
- 2013-11-11 23:00:34下载
- 积分：1
-
Polar_code
极化码的matlab实现，包括了完整的编码以及译码程序(polar coding and decoding)
- 2020-07-03 10:20:02下载
- 积分：1
-
ldpc_lower_tri
conversion of a matrix into lower triangular matrix
- 2020-06-17 04:00:01下载
- 积分：1
-
《Matlab基础及其应用教程》清晰版PDF
说明： matlab基础入门，适合新手学习matlab基础操作与功能(Introduction to matlab)
- 2021-02-04 18:02:00下载
- 积分：1
-
MIMO
MIMO系统滑模控制实例 让你更好地认识MIMO应用于滑模控制(Sliding mode control instance MIMO system allows you to apply a better understanding of MIMO Sliding Mode Control)
- 2013-10-27 10:58:18下载
- 积分：1
-
ax.25-test
AX.25业余无线电数据通信协议通信的实现程序，包括打包和解包。(A program for packeting and unpacking AX.25 protocol.)
- 2021-03-19 10:49:19下载
- 积分：1
-
BPSK调制仿真
说明： bpsk调制仿真，可直接用
1、数字调制方法
数字调制就是把数字基带信号的频谱搬移到高频处，形成适合在信道中传输的带通信号。基本的数字调制方式有振幅键控（ASK）、频移键控（FSK）、绝对相移键控（PSK）、相对（差分）相移键控（DPSK）。在接收端可以采用想干解调或非相干解调还原数字基带信号。
数字信号的传输方式分为基带传输和带通传输。然而，实际中的大多数信道（如）无线信道具有丰富的低频分量。为了使数字信号在带通信道中传输，必须用数字基带信号对载波进行调制，以使信号与信道的特性相匹配。(1, digital modulation method
Digital modulation is the transfer of the spectrum of a digital baseband signal to a high frequency to form a bandpass signal suitable for transmission in the channel. The basic digital modulation methods are amplitude keying (ASK), frequency shift keying (FSK), absolute phase shift keying (PSK), and relative (differential) phase shift keying (DPSK). At the receiving end, the digital baseband signal can be restored by using dry demodulation or non-coherent demodulation.
Digital signal transmission methods are divided into baseband transmission and bandpass transmission. However, most channels in practice, such as wireless channels, have rich low frequency components. In order for a digital signal to be transmitted in a band channel, the carrier must be modulated with a digital baseband signal to match the signal to the characteristics of the channel.)
- 2019-05-28 10:46:01下载
- 积分：1
-
MIMOOFDMPrecoding
TD-LTE下行传输采用了MIMO-OFDM的物理层构架，通过最多4个发射天线并行传输多个（最多4个）数据流，能够有效地提高峰值传输速率。LTE的物理层处理过程中，预编码是其核心功能模块，物理下行共享信道的几种主要传输模式都是通过预编码实现的。(The td-scdma LTE downlink transmission adopted MIMO - OFDM frame, the physical transmission antennas parallel transmission by up to four more (up to 4) data flow, can effectively improve the peak transmission rate.LTE) in the process of the physical layer of precoding is its core function module, several kinds of main physical downlink Shared channel transmission model is achieved by precoding.)
- 2018-02-03 16:36:53下载
- 积分：1
-
channel estimation
有助于学习LS信道估计的编码,以及mmse和LMMSE(ls chanel MMSE CHANEL LMMSE CHANEL)
- 2019-04-12 12:38:27下载
- 积分：1
-
ofdm-evm-v2
ofdm的编码过程，用evm和比特率进行对比(The encoding process of OFDM is compared with EVM and bit rate)
- 2020-09-14 20:57:56下载
- 积分：1
