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buhuo
- 扩频通信中的捕获问题，用GOLD码进行扩频， PN码相位捕获，利用捕获的相位，接收机产生偏移的GOLD码，进行解扩和误码率计算-Spread Spectrum Communication capture issue, GOLD spread spectrum code, PN phase acquisition. The capture phase, the receiver have offset the GOLD code for despreading and bit error rate
cross_speech_cancellation
- 传统双话筒降噪应用中，要求采用定向话筒对抗话音串扰问题，并且语音损伤较大，采用抗交叉串绕算法后，仅噪声被抵消，语音信号被保留。分为两个阶段，第一阶段，学习环境，第二阶段，抵消噪声。-Traditional dual-microphone noise reduction applications, the adoption of directional microphone voice against crosstalk, and a larger voice injury, using anti
sync-4-ofdm
- Joint maximum likelihood (ML)symbol-time and carrier-frequency offset estimator in orthogonal frequency-division multiplexing(OFDM) systems.-Joint maximum likelihood (ML)symbol-time and carrier-frequency offset estimator in orthogonal frequency-divi
Baseline-Estimation-Algorithm
- ：为有效减少大面积、多套干涉数据基线估计所需的地面控制点数量、降低接边处反演高程的差异，提出考虑干涉 相位偏置的犐狀犛犃犚区域网平差基线估计方法。采用中国科学院电子学研究所机载犐狀犛犃犚系统获取的多套干涉数据进行 了区域网平差基线估计试验，利用少量地面控制点完成了各套干涉数据的基线估计，减小接边处反演高程的差异，验证 该基线估计方法的有效性。-Baseline Estimation is important for deriving accurate heights in proce
Across_speechp
- 传统双话筒降噪应用中，要求采用定向话筒对抗话音串扰问题，并且语音损伤较大，采用抗交叉串绕算法后，，仅噪声被抵消，语音信号被保留。分为两个阶段，第一阶段，学习环境，第二阶段，抵消噪声。 -The application of the traditional dual-microphone noise reduction, directional microphone to confront the problem of voice crosstalk, and the voice more
communication
- 针对通信侦查课题，通过已知先验知识和截获信号，进行找出同步序列，匹配滤波，校正频偏和相偏，均衡，解交织，译码，恢复出原序列，最终得到的序列与原序列作对比得到误码率为0-Investigation subject for the communication, by known a priori knowledge and intercepted signal conducted to identify the synchronization sequence, the matched filter
qpsknoise
- Phase in sinusoidal functions or in waves has two different, but closely related, meanings. One is the initial angle of a sinusoidal function at its origin and is sometimes called phase offset. Another usage is the fraction of the wave cycle which ha
allpass_phase
- 全通滤波器的matlab设计，实现相位偏移-All-pass filter matlab design phase offset
Power-Flow
- 本程序的功能：在直角坐标系中，运用牛顿---拉夫逊法求解一般的潮流问题， 形成节点导纳矩阵、雅克比矩阵来建立修正方程，求解偏移量和电压新值， 进而求解电流、相角和输入功率、输出功率以及线路功率及其损耗问题。-This program features: In the Cartesian coordinate system, using Newton--- Raphson method for solving general trend of the problem, the forma
codeerr
- bpsk的调制与解调的过程，并采用卷积码，讨论其误码性能随着其功率、频偏、相偏而变化.-bpsk modulation and demodulation process and using convolutional codes, to discuss its error performance with its power, frequency offset, phase offset changes.
codeinterdsss1
- 对于bpsk直扩系统的误码仿真，直扩系统对于功率、频偏、相偏的鲁棒性。-For bpsk DSSS BER simulation systems, direct expansion systems for power, frequency offset, phase offset robustness. .
11-OtherLinearTechniques
- Differential PSK (DPSK) Inexpensive Quadrature Phase Shift Keying (QPSK) Twice as spectrally efficient than BPSK Offset QPSK (OQPSK) reduce envelope variation π/4 QPSK
main_no_offset_2
- 假设截获了一段短波数字通信的信号，要求解调出最终的信息，每组解调出来后，将10组信息组合起来，恢复最终的信源输出数据。 先验信息：两组数据文件，编号为1、2，每组I、Q两路存放，格式为“int16”，采样率为9600Sa/s，其中第一组为单径情况，第二组为多径情况。 参数符合MIL-STD-188-110A标准； 同步序列为syn=seq.dat，BPSK调制； 接收机频率稳定度高于1e-6。 文件中有效信息总长度为333.75s，其中同步头长为5/12s，每时隙1/6s，训
oqpsk
- 使用matlab simulink 仿真偏移四相相移键控，即OQPSK(Simulate offset quadrature phase shift keying using matlab simulink, ie OQPSK)