-
PCM
说明: 在实际的调谐解调电路中,采用的是非相干载波解调,本振信号与发射端的载波信号存在频率偏差和相位抖动,因而解调出来的模拟I、Q基带信号是带有载波误差的信号。这样的模拟基带信号即使采用定时准确的时钟进行取样判决,得到的数字信号也不是原来发射端的调制信号,误差的积累将导致抽样判决后的误码率增大,因此数字QPSK解调电路要对载波误差进行补偿,减少非相干载波解调带来的影响。(In the actual tuning and demodulating circuit, non-coherent carrier demodulation is adopted, and the frequency deviation and phase jitter of the local oscillator signal and the carrier signal of the transmitting end are present, and thus the demodulated analog I and Q baseband signals are signals with carrier error.)
- 2019-01-30 20:16:08下载
- 积分:1
-
UnderthePCintheWindows95andsingle-chipserialcommun
在Windows95下PC机和单片机的串行通信。
基于32位操作系统Windows95的工业控制PC机和单片机间的串行通信,给出了用VC++5.0和PL/M-96语言编写的串行通信程序(Under the PC in the Windows95 and single-chip serial communication. 32-bit operating system based on the Windows95 machine and industrial control PC serial communication between the single-chip, is given by VC++5.0 and PL/M-96 language serial communication program)
- 2009-05-31 15:11:53下载
- 积分:1
-
SC_FDE_system
实现单载波频域均衡 MMSE 并进行了一定的改进(Single-carrier frequency domain equalization MMSE and some improvements)
- 2021-03-22 23:09:16下载
- 积分:1
-
time-reversal-mimo
水声探测技术中时反结合mimo提高探测性能的matlab仿真(Anti combined mimo method to improve detection performance underwater acoustic detection technologies.)
- 2014-01-06 16:30:43下载
- 积分:1
-
49636976DWT_OFDM
说明: 实现OFDM DWT-OFDM fft-ofdm(ofdm DWT-OFDM fft-ofdm)
- 2020-10-12 22:17:35下载
- 积分:1
-
chapter3
知道完美信道状态信息与不知道信道状态信息的信道容量的对比(Know the perfect channel state information and does not know the channel state information of the channel capacity of the contrast)
- 2013-03-30 10:09:54下载
- 积分:1
-
wdd_argsStandardScheme
AdditionService add_args add_argsStandardScheme
- 2017-04-29 22:14:45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
-
CSE3213_13_RandomAccess_2_F2010.pdf
csma tutorial for begginers with graphics explantaion
- 2017-10-10 09:00:09下载
- 积分:1
-
Chapter-6
INDUSTRIAL CONTROL
(A B.Sc. Course)
- 2014-07-04 22:56:31下载
- 积分:1