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在MATLAB中用Goertzel算法（先用FFT算法，再用goertzel算法，）仿真DTMF的产生与检测的程序。应用于双音多频信号的产生与检测。-in Goertzel algorithm using MATLAB (first using FFT algorithm, reuse goertzel algorithm) simulation DTMF detection with the selection process. Used DTMF signal detection with the selection.

AN2120, Connecting an M68HC08 Family Microcontroller to an Internet Service Provider (ISP) Using the Point-to-Point Protocol (PPP).

如何用示波器观察眼图_english.zip 英文，介绍如何用示波器观察眼图-observe how oscilloscope eye diagram _english.zip English, how to use observation oscilloscope eye diagram

工学博士学位论文 目前，扩展卡尔曼滤波是研究初始对准和惯性/GPS组合导航问题的一个主要手段。 但初始对准和惯性/GPS组合导航问题本质上是非线性的，对模型进行线性化的扩展卡 尔曼滤波在一定程度上影响了系统的性能。近年来，直接使用非线性模型的 UKF(Unscented Kalman Filtering, UKF)和粒子滤波，正在逐渐成为研究非线性估计问题 的热点和有效方法。 本文研究了UKF和粒子滤波两种非线性滤波方法，并将其应用于非线性静基座对 准和惯性/GPS组合导航，系统地研究了初始对准和惯性/GPS组合导航中各种非线性项-Engineering PhD thesis Currently, EKF is the initial alignment study and inertial/GPS navigation of a major means. However, initial alignment and inertial/GPS navigation on the nature of the problem is nonlinear. on the model of linear expansion of the Kalman filter certain extent affected the performance of the system. In recent years, direct use of the non-linear model (UKF Unscented Kalman Filtering. UKF) and the particle filter, is gradually becoming nonlinear estimation of the hot and effective method. This paper studies the UKF and particle filter both nonlinear filtering method, will be applied to nonlinear static Base Alignment and inertial/GPS navigation, systematic study of initial alignment a

PDA手机益智小游戏设计编程,是一本学习的好书-PDA mobile phone puzzle game design program is a good learning

GPS NEMA 0183协议（中文）-GPS NEMA 0183 agreement (Chinese)

利用voip打电话，是一个OpenH323的应用-an OpenH323 application ,enable you make a call via voip

Very useful document to understand SI and SP frame design in H.264. -Very useful document to understand SI and SP frame design in H.264.

Gsm手机(短信息，电话簿)开发库C++源代码通过GSM modem 或 IrDA 设备基于GSM标准: ETSI GSM 07.07, ETSI GSM 07.05 -Gsm mobile phone (SMS messages, phone book) the development of library C++ Source code through the GSM modem or IrDA devices based on the GSM standard: ETSI GSM 07.07, ETSI GSM 07.05

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