-
一种基于高阶累积量的数字调相信号识别方法
对当前通信信号中常用的数字调相信号BPSK、QPSK、1／4一QPSK、8PSK的调制识别问题，提出了一种基于信号差分高阶累积量的识剐算法。该算法分两个层次进行调制识别，首先利用信号的四阶累积量特征对BPSK、QPSK和{1／4一QPSK、8PSK}信号进行识别，然后再利用信号差分的四阶和八阶累积量特征对1/4-QPSK、8PSK信号进行识别。从理论上分析了的该算法的有效性，并通过计算机仿真验证了算法具有良好的性能。(A recognition algorithm based on differential high-order cumulant is proposed for the modulation recognition problems of BPSK, QPSK, 1/4-QPSK and 8PSK, which are commonly used in current communication signals. The algorithm is divided into two levels for modulation recognition. Firstly, BPSK, QPSK and {1/4-QPSK, 8PSK} signals are identified by using the fourth-order cumulant characteristics of signals, and then 1/4-QPSK and 8PSK signals are identified by using the fourth-order cumulant and eighth-order cumulant characteristics of signal difference. The validity of the algorithm is analyzed theoretically, and the good performance of the algorithm is verified by computer simulation.)
- 2020-06-21 09:40:02下载
- 积分：1
-
InterferometricFiber-OpticSensor
该论文针对光纤传感系统，深入研究随机信号的互相关函数和基于AR模型的功率谱估计，设计出具有事件发生检测功能的传感器信号处理算法。(The paper for the fiber optic sensor system, in-depth study of the cross-correlation function of random signal-based AR model spectrum estimation, designed with the incident detection sensor signal processing algorithms.)
- 2010-08-30 21:49:29下载
- 积分：1
-
10285713
说明： 对语音编码技术的特点进行了分析与研究, 对波形编码,声码器和混合编码三种主要 的语音编码进行了比较, 并介绍了GSM 和CD(This paper analyzes and studies the characteristics of speech coding technology, compares the three main speech codes: waveform coding, vocoder and hybrid coding, and introduces GSM and CD.)
- 2019-03-27 23:52:25下载
- 积分：1
-
mqtt收发
mqtt-python收发，里面有几个例子，对于topic的分类，mqtt的连接，收发等！(Mqtt transceiver in python!)
- 2018-07-09 19:59:30下载
- 积分：1
-
HUAWEI_3G_EM770W_EM660
华为3G模块_EM770W_EM660资料和wince驱动(Huawei 3G module _ EM770W_EM660 data and WinCE driver)
- 2012-02-08 19:54:29下载
- 积分：1
-
performance_of_MIMO
MIMO多天线收发 各种性能比较（BER曲线） 包括MMRC EGC SC Alamouti V-BLAST。信道为瑞利信道，有2种，相关和非相关。测试仿真结果 请运行文件名带plot的。(MIMO multi-antenna transceiver various performance comparison (BER curve), including MMRC EGC Ala SC mouti V-BLAST. Rayleigh channel to channel, two species, and correlated. Simulation results of tests requested documents were operating with the plot.)
- 2007-06-25 07:19:58下载
- 积分：1
-
alalog
说明： Goertzel算法是DTMF信号检测的核心,它利用二极点的IIR滤波器计算离散傅立叶变换值,快速有效的提取输入信号的频谱(Goertzel algorithm is the core of DTMF signal detection. It uses the two-pole IIR filter to calculate the discrete Fourier transform value, and extracts the spectrum of input signal quickly and effectively.)
- 2019-03-26 12:48:59下载
- 积分：1
-
ENC28J60
带SPI接口的独立以太网接口控制器，支持全双工和半双工模式，高速SPI接口(Independent Ethernet interface controller with SPI interface, support for full-duplex and half-duplex mode, high-speed SPI interface)
- 2013-03-19 15:11:32下载
- 积分：1
-
music
说明： 基于经典music算法及其修正算法的DOA估计以及性能仿真(DOA estimation and performance simulation based on classical Music algorithm and its modified algorithm)
- 2020-11-29 21:42:54下载
- 积分：1
-
Bluetooth
CBluetoothDlg dlg
m_pMainWnd = &dlg
INT_PTR nResponse = dlg.DoModal()
- 2010-01-14 12:08:18下载
- 积分：1
