Comm.jar是Sub实现底层串口操作的API,调用了本地的DLL文件,因为Java本身不具备直接访问硬件设置的能力,都是通过调用本地方法来实现的.可以Java的官方网站下载.下载之后把其中Comm.jar包导入到工程的Classpath中,把另外两个非常重要的文件javax.comm.properties和win32com.dll考贝到你的工程目录下,即java.user下.
上传时间： 2013-12-08
上传用户：ippler8
Elan typical sub program
上传时间： 2015-07-19
上传用户：luopoguixiong
一个演示正二十面体与球的(OR)组合(AND)组合(SUB)组合等的工程,编译,运行都需要glut
上传时间： 2014-10-12
上传用户：坏坏的华仔
Sample for selecting the sub item in ListCtrl
标签： selecting ListCtrl Sample item
上传时间： 2015-08-13
上传用户：aa54
Single Carrier Frequency Domain Equalization Simulation(单载波频域均衡仿真程序)
标签： Equalization Simulation Frequency Carrier
上传时间： 2015-10-17
上传用户：asdfasdfd
实验参数采集窗口程序 开始采集 Private Sub kaishicaiji_Click() Timer1.Enabled = True End Sub Private Sub lishishuju_Click() Form5.Show Form2.Hide End Sub Private Sub shishiquxian_Click() Form4.Show Form2.Hide End Sub
标签： Private Sub kaishicaiji_Click Enabled
上传时间： 2015-10-28
上传用户：watch100
bu9435是一款MP3解码IC,可以独立使用,也可以通过I2C接口作为SUB IC.不错的选择!
上传时间： 2014-01-18
上传用户：小草123
IEEE 802.15.3a标准的超宽带信道模型.This is the final report of the channel modeling sub-committee.
标签： sub-committee the modeling channel
上传时间： 2015-12-26
上传用户：aysyzxzm
We address the problem of blind carrier frequency-offset (CFO) estimation in quadrature amplitude modulation, phase-shift keying, and pulse amplitude modulation communications systems.We study the performance of a standard CFO estimate, which consists of first raising the received signal to the Mth power, where M is an integer depending on the type and size of the symbol constellation, and then applying the nonlinear least squares (NLLS) estimation approach. At low signal-to noise ratio (SNR), the NLLS method fails to provide an accurate CFO estimate because of the presence of outliers. In this letter, we derive an approximate closed-form expression for the outlier probability. This enables us to predict the mean-square error (MSE) on CFO estimation for all SNR values. For a given SNR, the new results also give insight into the minimum number of samples required in the CFO estimation procedure, in order to ensure that the MSE on estimation is not significantly affected by the outliers.
标签： frequency-offset estimation quadrature amplitude
上传时间： 2014-01-22
上传用户：牛布牛
Carrier-phase synchronization can be approached in a general manner by estimating the multiplicative distortion (MD) to which a baseband received signal in an RF or coherent optical transmission system is subjected. This paper presents a unified modeling and estimation of the MD in finite-alphabet digital communication systems. A simple form of MD is the camer phase exp GO) which has to be estimated and compensated for in a coherent receiver. A more general case with fading must, however, allow for amplitude as well as phase variations of the MD. We assume a state-variable model for the MD and generally obtain a nonlinear estimation problem with additional randomly-varying system parameters such as received signal power, frequency offset, and Doppler spread. An extended Kalman filter is then applied as a near-optimal solution to the adaptive MD and channel parameter estimation problem. Examples are given to show the use and some advantages of this scheme.
标签： synchronization Carrier-phase multiplicativ approached
上传时间： 2013-11-28
上传用户：windwolf2000
