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DSPIC30-ACIM
介绍用dspic30f设计变频器，便介绍了变频器的设计电路，单三相(bianpinqi)
- 2010-03-02 10:46:12下载
- 积分：1
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SRM_DRIVE
基于TMS320LF2407的步进电机驱动项目程序(Stepper motor driver project procedures based on TMS320LF2407)
- 2012-07-03 00:18:45下载
- 积分：1
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moxingtu
单相逆变器并网控制，单相逆变器并网控制，单相逆变器并网控制(Single-phase inverter grid-controlled, single-phase inverter grid-controlled, single-phase inverter and network control)
- 2013-07-18 10:01:23下载
- 积分：1
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周跳探测程序（Matlab）
matlab检测卫星出现周跳的频率和位置(Matlab detection of the frequency and position of the weekly jump)
- 2021-05-14 12:30:02下载
- 积分：1
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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
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xyz2neu
XYZ坐标转为GLOBK或者QOCA中的NEU，以及大地测量中大地线反解问题，即由经纬度解算大地线长度(convert XYZ coordinates into NEU in GLOBK or NEU, and geodetic earth line inverse solution, that solution by the latitude and longitude Geodetic Line length)
- 2013-05-15 08:42:17下载
- 积分：1
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5
说明： 5. 在三条径的瑞利信道中，对于直接序列扩频：
(1) 请设计DS-CDMA一种具体的码分导引辅助的信道估计方法，接收机分别采用等均益合并、最大比合并。用Simulink进行仿真，画出比特信噪比与信道估计均方误差的关系曲线和比特信噪比与误码率的关系曲线。
(2) 设频率已经同步，请设计DS-CDMA一种具体的单停顿滑动相关时间同步方法，用Simulink进行仿真，画出比特信噪比与捕获概率的关系曲线。
(3) 设时间已经同步，请设计DS-CDMA一种具体的频率同步方法，用Simulink进行仿真，画出比特信噪比与频率同步误差的关系曲线。(5. In three-path Rayleigh channel, for direct sequence spread spectrum:
(1) please design a specific code division navigation aided channel estimation method for ds-cdma, and adopt equal-beneficial combination and maximum ratio combination for receivers respectively.Simulink is used to simulate and draw the relationship curve between bit SNR and channel estimation mean square error and the relationship curve between bit SNR and bit error rate.
(2) assuming that the frequency has been synchronized, please design a specific single-stop sliding correlation time synchronization method ds-cdma, Simulink simulation, draw the relationship between the bit SNR and the acquisition probability curve.
(3) if the time has been synchronized, please design a specific frequency synchronization method ds-cdma, Simulink simulation, draw the relationship between the bit SNR and frequency synchronization error curve.)
- 2019-01-15 10:58:23下载
- 积分：1
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FirstMyBatis
使用mybatis实现的一个小例子,可以帮助初学者快速入门(user mybatis complete a demo)
- 2013-12-29 13:41:36下载
- 积分：1
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newfile5
【例6.4-1】本例演示：pcolor , contour, contourf的调用格式；等位线标高指令 clabel 的配合使用和区别；colorbar在用户指定位置上创建着色标尺；subplot子图位置的控制；图形窗背景底色的设置。（图6.4-1）(Example 6.4-1 This example demonstrates: pcolor, contour, contourf' s call format the bit line elevation instruction clabel of the used in conjunction with, and differences in the user-specified location colorbar create coloring ruler of the subplot subgraph location control graphics window Background background settings. (Figure 6.4-1))
- 2013-03-03 10:18:28下载
- 积分：1
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STBC
这是一个基于2发2收,STBC的MIMO仿真模型,在该模型中,不错的(This is a based on hair 2, 2, STBC MIMO simulation model, in this model, good)
- 2021-05-07 20:25:35下载
- 积分：1
