搜索资源列表
laowai
- 采样法生成三相SPWM波的开环调速控制程序载波频率为20KHz，或载波周期为50μs。DSP晶振10MHz，内部4倍频，时钟频率为40MHz，计数周期为25ns。假设调制波频率由外部输入（1～50Hz），并转换成合适的格式-Sampling method to generate three-phase SPWM wave open-loop speed control procedures for the carrier frequency 20KHz, or carrier period is
DDSI16P
- 单相载波表 DDSI16（V5.22）-Single-phase Carrier Table DDSI16 (V5.22)
chap09
- ex9_1 脉冲信号调制 ex9_2 载波10MHz，带宽2MHz的线性调频信号及其频谱图 ex9_3 产生7位巴克码编码的二相码 ex9_4 产生7位巴克码和线性调频的混合调制信号 ex9_5 瑞利分布实现程序 ex9_6 瑞利分布＋杂波 ex9_7 相关对数正态分布杂波 ex9_8 相关weibull分布杂波 ex9_9 相干相关K分布杂波 ex9_10 线性调频信号的数字化正交解调 ex9_11 雷达脉冲压缩处理 ex9_12 二相编码信号的脉压
frequency_test
- 此为通信matlab仿真平台 simulink仿真模型，包括中频传输 基带解调 载波同步 多相滤波 和NCO的大系统-This is the communication matlab simulation model simulink simulation platform, including the transmission base-band demodulator IF carrier synchronization of multi-phase filtering and large-
Costa_sss
- 科斯塔斯环 有助于载波同步的研究 锁相 载频3.563MHz，初始频率3.5628MHz 绘图显示具体的循环锁相过程 绘图显示相位变化-Costas reference for carrier synchronization fc0=3.563MHz,fc=3.5628Mhz show the process of synchronzation and phase change with figure.
matlabxueqi
- 小学期的源程序 1．试编MATLAB程序。信号 sinc(10*t),-2<=t<=2 m(t)= 0,其它 用100hz的载波来产DSB信号并解调。完成下列工作： 画出已调信号； 求已调信号的频谱，并用图像表示。 画出解调信号； 求解调信号的频谱，并用图像表示。 2．信号 sinc2(100t),|t|≤t0 m(t)= 0, 其它 采用频率调制调制为1000HZ的载波。频偏常数为kf=50,t0=0.2
fm2307demo_v1
- 用于单相电表复费率载波、红外通信源程序，四费率-For single-phase meter multi-rate carrier, infrared communication source, the four rates
sf
- 出一种新 的SVPWM 算法。采用SPWM 中调制波与载波相比较的规则采样思路，通过在静止坐标系下直接 计算每个参考电压矢量所对应的三相调制波的函数值，进而得到每相电压在一个PWM 周期中的占空比。-A new SVPWM algorithm. SPWM modulation used in the carrier wave, compared with the rules of sampling ideas, through the static coordinate system d
simplex_wireless_calling_system
- 单工无线呼叫系统分发射和接收两大部分。发射部分采用锁相环式频率合成器技术， MC145152和MC12022芯片组成锁相环，将载波频率精确锁定在35MHz，输出载波的稳定度达到4×10-5，准确度达到3×10-5，由变容二极管V149和集成压控振荡器芯片MC1648实现对载波的调频调制；末级功放选用三极管2SC1970，使其工作在丙类放大状态，提高了放大器的效率，输出功率达到设计要求。接收部分以超大规模AM/FM立体声收音集成芯片CXA1238S为主体，灵敏度、镜像抑制、信噪比等各项性能指标均达
tanahashi_ICC2007
- a novel peak power reduction scheme based on trellis shaping is proposed for single-carrier pulse-shaped phase shift keying (PSK) systems.
ici3
- 使用ICI自我相消的方法條件下，來觀察使用訊號與干擾的大小CIR(載波干擾比值)的變化-Consumers using the ICI method of self-phase conditions, to observe the use of signal and interference with the size of the CIR (Carrier to Interference ratio) changes in
DDSFI-HLJ-NEC
- 三相载波电能表 三相载波电能表 -Three-Phase Carrier Energy Meter Three-Phase Carrier Energy Meter Three Phase Energy Meter Three-Phase Carrier Energy Meter carrier
DXB
- 福星小程单相电能表载波通信模块结构要求V1.0-Fuxing small range of single-phase energy meter-carrier communication module structure requires V1.0
SXB
- 附录G 三相智能电能表电力载波通信模块V1.0-Appendix G-phase intelligent energy meter power line carrier communication module
GDW-PLCModem
- 国网一代 单相三相电表载波模块GDW-PLCModem说明-State Grid generation of single-phase three-phase meter carrier module GDW-PLCModem Descr iption
QAM_16
- 16QAM载波同步的影响仿真，针对有频偏，有相偏，无频偏相偏情况下的星座图。-16QAM carrier synchronization of simulation, for a frequency offset, a phase offset, phase offset without offset under the constellation.
frerecov
- 通信系统中有关于利用锁相环完成载波跟踪恢复的仿真功能-Communication system using phase-locked loop on the completion of the simulation function to restore the carrier tracking
BPSK
- In BPSK modulation, the phase of the RF carrier is shifted 180 degrees in accordance with a digital bit stream. A form of phase modulation in which the modulating function shifts the instantaneous phase of the modulated wave between predetermined dis
abc
- Abstract—This paper describes a pseudorandom carrier modulation scheme and its harmonic spectra spread effect. The pseudorandom carrier of the proposed scheme are produced through the random synthesis of the two triangular carriers, each of the
gmskmod
- GMSK调制，先实现相位的计算，再加入载波调制，输出GMSK信号-GMSK modulation, the first implementation phase of the calculation, then add carrier modulation, the output GMSK signal