Comm.jar是Sub實現(xiàn)底層串口操作的API,調(diào)用了本地的DLL文件,因為Java本身不具備直接訪問硬件設置的能力,都是通過調(diào)用本地方法來實現(xiàn)的.可以Java的官方網(wǎng)站下載.下載之后把其中Comm.jar包導入到工程的Classpath中,把另外兩個非常重要的文件javax.comm.properties和win32com.dll考貝到你的工程目錄下,即java.user下.
上傳時間： 2013-12-08
上傳用戶：ippler8
Elan typical sub program
上傳時間： 2015-07-19
上傳用戶：luopoguixiong
一個演示正二十面體與球的(OR)組合(AND)組合(SUB)組合等的工程,編譯,運行都需要glut
上傳時間： 2014-10-12
上傳用戶：壞壞的華仔
Sample for selecting the sub item in ListCtrl
標簽： selecting ListCtrl Sample item
上傳時間： 2015-08-13
上傳用戶：aa54
Single Carrier Frequency Domain Equalization Simulation(單載波頻域均衡仿真程序)
標簽： Equalization Simulation Frequency Carrier
上傳時間： 2015-10-17
上傳用戶：asdfasdfd
實驗參數(shù)采集窗口程序 開始采集 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
標簽： Private Sub kaishicaiji_Click Enabled
上傳時間： 2015-10-28
上傳用戶：watch100
bu9435是一款MP3解碼IC,可以獨立使用,也可以通過I2C接口作為SUB IC.不錯的選擇!
上傳時間： 2014-01-18
上傳用戶：小草123
IEEE 802.15.3a標準的超寬帶信道模型.This is the final report of the channel modeling sub-committee.
標簽： sub-committee the modeling channel
上傳時間： 2015-12-26
上傳用戶：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.
標簽： frequency-offset estimation quadrature amplitude
上傳時間： 2014-01-22
上傳用戶：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.
標簽： synchronization Carrier-phase multiplicativ approached
上傳時間： 2013-11-28
上傳用戶：windwolf2000
