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ofdm仿真
说明: OFDM即正交频分复用技术,多载波调制的一种。其主要思想是:将信道分成若干正交子信道,将高速数据信号转换成并行的低速子数据流,调制到在每个子信道上进行传输。。每个子信道上的信号带宽小于信道的相关带宽,因此每个子信道上的可以看成平坦性衰落,从而可以消除符号间干扰。而且由于每个子信道的带宽仅仅是原信道带宽的一小部分,信道均衡变得相对容易。(Orthogonal Frequency Division Multiplexing (OFDM) is a kind of multi-carrier modulation. The main idea is to divide the channel into several orthogonal sub-channels, convert high-speed data signals into parallel low-speed sub-data streams, and modulate them to transmit on each sub-channel. The signal bandwidth on each sub-channel is less than the correlation bandwidth of the channel, so it can be seen as flat fading on each sub-channel, which can eliminate inter-symbol interference. Moreover, since the bandwidth of each subchannel is only a small part of the original channel bandwidth, channel equalization becomes relatively easy.)
- 2019-04-27 10:18:25下载
- 积分:1
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SQLite-1.0.31.0
一个sqlite数据库操作文件。自己用着不错,共享下(A sqlite database operation file. Themselves with the good, the next sharing)
- 2010-12-05 17:01:40下载
- 积分:1
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gis地图
gis地图 --- --æ–‡å—1-gis writing a map
- 2023-05-23 18:25:03下载
- 积分:1
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可以用它来编辑各种各样的语言程序,大大减轻你的工作强度
可以用它来编辑各种各样的语言程序,大大减轻你的工作强度-Can use it to edit a variety of language program, greatly reduce the intensity of your work
- 2022-02-15 09:37:15下载
- 积分:1
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单相桥式逆变电路仿真
说明: 单相桥式逆变电路simulink仿真。。。。。。。。。。。。。。。。。(Simulink simulation of single-phase bridge inverter circui...)
- 2020-05-21 16:03:29下载
- 积分:1
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peizhun
//以上的代码加载了两个PCD文件得到共享指针,
//后续配准是完成对源点云到目标点云的参考坐标系的变换矩阵的估计,
//得到第二组点云变换到第一组点云坐标系下的变换矩阵
// 将输入的扫描点云数据过滤到原始尺寸的10%以提高匹配的速度,
//只对源点云进行滤波,减少其数据量,而目标点云不需要滤波处理
//因为在NDT算法中在目标点云 对应的 体素网格数据结构的 统计计算不使用单个点,
//而是使用包含在每个体素单元格中的点的统计数据(The following links describe a set of basic PCL tutorials. Please note that their source codes may already be provided as part of the PCL regular releases, so check there before you start copy & pasting the code. The list of tutorials below is automatically generated from reST files located in our git repository.)
- 2019-04-01 11:00:00下载
- 积分:1
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石川算法
通过石川算法计算齿轮的啮合刚度,专业算法(Ishikawa algorithm for calculating mesh stiffness)
- 2018-08-16 10:31:20下载
- 积分:1
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V4I8-0393
International Journal of Advanced Research in Computer Science and Software Engineering
- 2018-12-01 00:24:03下载
- 积分:1
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jable
QL SERVER 数据库修复工具 可以实现SQL SERVER 修复,SQL恢复,误删除表,SQL 数据恢复,SQL S(QL SERVER database repair tool can implement SQL SERVER repair, SQL recovery, error-delete table, SQL data recovery, SQL S)
- 2018-10-28 11:51:03下载
- 积分:1
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基于遗传模拟退货的聚类算法
说明: 基于遗传模拟退货的聚类算法,非常实用,可以直接运行(Clustering algorithm based on genetic simulation of returns is very practical and can be run directly)
- 2020-07-29 15:50:06下载
- 积分:1