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sound_card
- 声卡数字频率计.该程序是标准的Windows界面，界面友好，以黑色背景红色大号字体显示频率值，具有醒目、程序简洁和测量精度高的特点-Sound Card digital frequency meter. The procedure is the standard Windows interface, the interface is friendly. red and black background tuba font frequency is smart, concise and proce
lcyPLVC++6.0
- 声卡数字频率计 PC中的声卡不仅能输出和录制各种音频信号，利用其内部的A/D（模拟/数字）转换器，通过编写程序还可以用来对外部的周期性的模拟信号进行采样，并计算出该信号的频率值。文中所述的作者设计的程序就是这样的一种程序，能够满足一般电子爱好者把PC作为数字频率计使用的要求。该程序是标准的Windows界面，界面友好，以黑色背景红色大号字体显示频率值，具有醒目、程序简洁和测量精度高的特点，-sound card number or frequency of PC sound card can n
movavg
- A moving average filter averages a number of input samples and produce a single output sample. This averaging action removes the high frequency components present in the signal. Moving average filters are normally used as low pass filters. In recursi
imcorrelation_33
- this s the code for high frequency emphasis filter
OFDM_in_well_logging
- 基于 OFDM的高速遥传电缆调制解调器设计 基于 OFDM的高速遥传电缆调制解调器设计-Abstract : In order to meet t he demand of high data volume for imaging tool s , a cable Modulator/ De2 modulator is investigated and developed since it is t he key to any high2speed cable t ransmission s
encoder
- Implementation of a speech codec based on coding of speech at 8 kbit/s using conjugate-structure algebraic-code-excited linear-prediction (CS-ACELP) - We took .wav files that is sampled at 8000 Hz using 16-bit linear PCM. The encoding process i
digitalfilter
- 设计产生一个连续信号，包含低频，中频，高频分量，对其进行采样，进行频谱分析，使用矩形窗设计不同特性的数字滤波器对信号进行滤波处理，分析所设计滤波器(画出了频率特性曲线)，并对信号进行滤波，画出滤波后信号的时域波形和频谱，并对滤波前后的信号进行对比，同时设计出了一个友好的人机交互界面。-Designed to produce a continuous signal, including low frequency, medium frequency, high frequency componen
RTC
- 视频会议（即时通讯）系统所使用的视频音频请求、白板、程序控制（远程协助）、消息、视频单频调节等内容完全编码演示。可自行将相应代码编写为DLL形式。视频、音频均为高质量。-Video conference (instant messaging) system used by the request of video and audio, whiteboard, program control (remote assistance), news, video, single-frequency re
wersf
- 智能视频监控是利用计算机视觉技术对摄像机采集的视频数据进 行分析、理解，并以此为基础对视频监控系统进行控制。由于单个摄 像机都视野域有限，监控大范围场景时需要使用多摄像机系统。智能 视频跟踪系统中多个摄像机的使用有利于解决遮挡问题，场景混乱、 环境光照突变情况下的运动目标跟踪等问题。 而且基于多摄像机的视 频跟踪在高级人机交互、视频会议、医疗诊断以及基于内容的存储与 检索等方面有广泛的应用前景和潜在的经济价值-Intelligent video surveillance
ADS_a)___
- ads仿真天线，用于2.4G等不同频段软件设计，达到高灵敏度高速度-ads simulation antenna, 2.4G different frequency bands used for software design, to achieve high sensitivity, high speed
biansheng
- 此文件实现了让语音信号通过低通，高通，带通滤波器使其变声，并且在GUI界面上绘出了个滤波器的频率响应和语音信号的频谱。-This file allows to achieve a voice signal through a low pass, high pass, band pass filter to make it change the sound, and plotted on a GUI interface and voice signal spectrum frequency res
speech-signal-filter
- 使用matlab语言对一段语音信号进行滤波处理，首先分析时域信号，之后进行傅立叶变换，转换成频域，使用巴特沃斯低通滤波器去除高频部分。-Use matlab language of a voice signal is filtered first time domain signal after the Fourier transform is converted into the frequency domain, using a Butterworth low-pass filter to