Description: ADS7846/7843芯片 适合用在4线制触摸屏，它通过标准SPI协议和CPU通信，操作简单，精度高，当触摸屏被按下时（即有触摸事件发生）则ADS7846向CPU发中断请求，CPU接到请求后，应延时一下再响应其请求，目的是为了消除抖动使得采样更准确-ADS7846/7843 chip suitable for use in the 4-wire Touchscreen, SPI through standard protocols and CPU communication, simple operation, high accuracy, When the touch screen is pressed (that is, touching incident) ADS7846 to the CPU interrupt request, CPU upon request, should be about responding to delay its request, the purpose of eliminating jitter make more accurate sampling Platform: |
Size: 4096 |
Author:YMCHUNG |
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Description: iLBC 产生背景
在VoIP的应用中，大部分厂商采用CELP (Code Excited Linear Prediction) 算法的低速率语音编解码，如ITU G.729和G.723.1等。而VoIP应用主要在包交换的IP网络上进行传输，无法避免IP网络的丢包、延时、抖动等实时传输问题，而传统的这几个CELP算法对高丢包的处理不是很好，因而很大程度上会影响语音通话效果。
-iLBC background in the application of VoIP, Most manufacturers to use CELP (Code Excited Linear Prediction) Algorithm low-rate voice codecs, such as G.729 and ITU G.723.1, etc.. And the main application of VoIP in the IP packet-switched network for transmission, could not avoid IP network packet loss, delay, jitter and other real-time transmission, and a few traditional CELP algorithm to handle the high packet loss is not very good, which will largely affect voice calls effect. Platform: |
Size: 67584 |
Author:王刚 |
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Description: 有线网络中的ns2仿真模块,有延时模型和抖动等函数实现.-Cable network ns2 simulation module, there is delay and jitter, such as model function. Platform: |
Size: 88064 |
Author:dongmingjie |
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Description: 分析了IP 电话系统中回声的特点, 并针对其回声具有路径延迟、延迟抖动大等特点, 提出
了一种基于延迟分析的自适应回声消除器设计的新思想和相关算法。介绍了自适应回声消除器的
基本结构及各个功能模块, 例如: 变阶数自适应滤波器, 语音状态检测器, 延迟分析器和NLM S 算
法控制器. 本文还详细论述了以TM S320C6201DSP 为硬件平台来实现能运用在IP 电话网关中的
自适应回声消除器及其在IP 电话系统中的连接关系。在文章的最后, 列举了对自适应回声消除器
的性能测试结果, 并分析了自适应回声消除器的优点, 证明了自适应回声消除器能很好地解决IP
电话系统中的回声消除问题。-Analysis of the IP telephone system in the characteristics of echo, and echo with a path for its delay, delay jitter features and so on, the
A delay based on the analysis of adaptive echo cancellation design of the new ideas and related algorithms. Introduced the adaptive echo cancellation device
The basic structure and the various functional modules, such as: change the order of adaptive filter, voice status detector, the delay count analyzers and NLM S
Law controller. This article also discussed in detail in TM S320C6201DSP to achieve for the hardware platform to use in the IP Phone Gateway
Adaptive echo cancellation and its IP phone system in the connections. Finally, listed on the adaptive echo canceller
The performance test results and analysis of the adaptive advantages of echo cancellation devices to prove that the adaptive echo canceller can be a good solution to IP
Telephone system in the echo cancellation problem. Platform: |
Size: 259072 |
Author:wlch |
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Description: Deploying Voice over IP (VoIP) successfully in a data network has some unexpected pitfalls. In previous papers, we’ve explored how to do a Voice Readiness Assessment [1] and looked at focused planning and design tips [2,3]. This paper describes changes you can make to improve how a data network handles VoIP traffic – that is, how you can reduce one-way delay, jitter, and data loss for VoIP traffic, while retaining the performance of your other business-critical network applications. Platform: |
Size: 240640 |
Author:primitive_man |
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Description: QoS, Quality of Services The data transfer requirements are defined with
different QoS parameters
+ e.g., delay, jitter, error rate, capacity
The customer negotiates the QoS parameters with
the service provider before the use of service
The highest protocol level is used in negotiations
Parameters are transformed and distributed to the
lower levels Platform: |
Size: 189440 |
Author:hidetsugu |
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Description: Iperf was developed by NLANR/DAST as a modern alternative for measuring maximum TCP and UDP bandwidth performance. Iperf allows the tuning of various parameters and UDP characteristics. Iperf reports bandwidth, delay jitter, datagram loss. -
Iperf was developed by NLANR/DAST as a modern alternative for measuring maximum TCP and UDP bandwidth performance. Iperf allows the tuning of various parameters and UDP characteristics. Iperf reports bandwidth, delay jitter, datagram loss. Platform: |
Size: 1393664 |
Author:vicky |
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Description: ntfs was developed by NLANR/DAST as a modern alternative for measuring maximum TCP and UDP bandwidth performance. Iperf allows the tuning of various parameters and UDP characteristics. Iperf reports bandwidth, delay jitter, datagram loss. Platform: |
Size: 624640 |
Author:vicky |
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Description: Iperf是一个网络性能测试工具。可以测试TCP和UDP带宽质量，可以测量最大TCP带宽，具有多种参数和UDP特性，可以报告带宽，延迟抖动和数据包丢失。-Iperf is a network performance testing tools. To test TCP and UDP bandwidth, quality, and can measure the maximum TCP bandwidth, with a variety of parameters and UDP characteristics, can report the bandwidth, delay jitter and packet loss. Platform: |
Size: 248832 |
Author:xibeixue |
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Description: Mausezahn 是一个采用C开发的快速的网络包生成工具。让您发送几乎一切可能的和不可能的数据包。它主要用于测试VoIP或组播的网络，但也为安全审计，以检查是否你的系统是强化具体的攻击不够。-Mausezahn is a free fast traffic generator written in C which allows you to send nearly every possible and impossible packet. It is mainly used to test VoIP or multicast networks but also for security audits to check whether your systems are hardened enough for specific attacks.
Mausezahn can be used for example:
As traffic generator (e. g. to stress multicast networks)
To precisely measure jitter (delay variations) between two hosts (e. g. for VoIP-SLA verification)
As didactical tool during a datacom lecture or for lab exercises
For penetration testing of firewalls and IDS
For DoS attacks on networks (for audit purposes of course)
To find bugs in network software or appliances
For reconnaissance attacks using ping sweeps and port scans
To test network behaviour under strange circumstances (stress test, malformed packets, ...) Platform: |
Size: 913408 |
Author:susu |
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Description: 这是一个在Mesh环境下做的典型星型拓扑路由协议仿真，还有awk分析延迟、抖动、丢包率等特性，希望对做Mesh毕业设计的人有帮助-This is done under a typical Mesh star topology routing protocol emulation, and awk analysis of delay, jitter, packet loss rate and other characteristics, and I hope people do Mesh graduation help! ! Thank you! ! Platform: |
Size: 177152 |
Author:肖文泽 |
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Description: S3C2440 键盘驱动，八个按键，中断处理分上下部分，带定时器延时去抖动功能-S3C2440 keyboard-driven, eight buttons, upper and lower part of the interrupt handler with the timer delay to the jitter Platform: |
Size: 3072 |
Author:黄斌 |
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Description: 自己编写的关于无线脚本的trace文件分析awk文件。
在无线网络层仿真中，使用NS2软件的必修课就是使用AWK文件分析TRACE文件。
我所写的网络层方面的仿真大多都用这几个文件作分析--时延、吞吐量、抖动、剩余能量、丢包率。希望对你有用。-Awk file decoded by myself which can analysis trace file in wireless scenery.
In wireless simulation on network layer, using awk file to analysis trace file is inevitable.
i always use these awk file to analysis delay, throughput,jitter, residual energy and loss rate. I hope it can help you. Platform: |
Size: 2048 |
Author:许瑞琛 |
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Description: 本代码为编码开关代码，编码开关也就是数字音响中的
360度旋转的数字音量以及显示器上用的（单键飞梭开
关）等类似鼠标滚轮的手动计数输入设备。
我使用的编码开关为5个引脚的，其中2个引脚为按下
转轮开关（也就相当于鼠标中键）。另外3个引脚用来
检测旋转方向以及旋转步数的检测端。引脚分别为a,b,c
b接地a，c分别接到P2.0和P2.1口并分别接两个10K上拉
电阻，并且a，c需要分别对地接一个104的电容，否则
因为编码开关的触点抖动会引起轻微误动作。本程序不
使用定时器，不占用中断，不使用延时代码，并对每个
细分步数进行判断，避免一切误动作，性能超级稳定。
我使用的编码器是APLS的EC11B可以参照附件的时序图
编码器控制流水灯最能说明问题，下面是以一段流水
灯来演示。-This code for code switch code, coding switch is the digital audio
360 degrees of rotation digital volume and displays use on the open list key shuttle (
Closed) and similar mouse wheel manual count input device.
I use a code switch for five of the pins, with two pins for press
The runner switch (also is equivalent to the middle mouse button). Three other pins are used to
The rotation direction detection and rotation of the number of detection. Pins are respectively for a, b, c
B, c received a ground respectively P2.0 and P2.1 mouth and take two 10 K respectively on pull
Resistance, and a, c need to pick up a respectively in 104, otherwise the capacitance
Because of the code switch contacts jitter can cause minor wrong action. This procedure does not
Use timer, do not take up interrupt, do not use delay, and each code
Segment for judgment, avoid steps all misoperation, super stable performance.
I use of APLS is encoder EC11B can refer to the attachment sequence chart
Encode Platform: |
Size: 824320 |
Author:赵博伟 |
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Description: JITTERBUG 是一个用来仿真线性控制系统的Matlab工具箱。通过JITTERBUG，我们能得到延时、数据丢失对系统的性能影响。同时，这个工具箱还能计算控制系统中信号的谱密度。-JITTERBUG [Lincoln and Cervin, 2002] is a MATLAB-based toolbox that allows
the computation of a quadratic performance criterion for a linear control
system under various timing conditions. Using the toolbox, one can easily
and quickly assert how sensitive a control system is to delay, jitter, lost
samples, etc., without resorting to simulation. The tool is quite general and
can also be used to investigate jitter-compensating controllers, aperiodic
controllers, and multi-rate controllers. As an additional feature, it is also
possible to compute the spectral density of the signals in the control system.
The main contribution of the toolbox, which is built on well-known theory
(LQG theory and jump linear systems), is to make it easy to apply this
type of stochastic analysis to a wide range of problems. Platform: |
Size: 35840 |
Author:钱三强 |
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Description: 利用NS2网络仿真软件对802.11和802.11e进行仿真，从而形成RD文件，再从RD文件中分析他们的网络延迟，延迟抖动率以及吞吐量。-802.11 and 802.11e simulation, thus forming the RD file, and then analyze their network delay, delay jitter and throughput from the RD file. Platform: |
Size: 2048 |
Author:乔纬国 |
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Description: Iperf 是一个网络性能测试工具。Iperf可以测试最大TCP和UDP带宽性能。Iperf具有多种参数和UDP特性，可以根据需要调整。Iperf可以报告带宽，延迟抖动和数据包丢失。
iperf 分为两种版本，unix/linux版和windows版，unix/linux版更新比较快，版本最新。windows版更新慢。windows版的iperf叫jperf，或者xjperf。jperf是在iperf基础上开发了更好的UI和新的功能。-Iperf is a network performance testing tools. Iperf can test the maximum TCP and UDP bandwidth performance. The Iperf have a wide range of parameters and UDP characteristics, can be adjusted. Iperf can report bandwidth, delay, jitter and packet loss. The iperf divided into two versions of unix/linux version and the version of windows, unix/linux version update faster latest version. windows update slow. windows version the the iperf call jperf, or xjperf. jperf iperf developed on the basis of a better UI and new features. Platform: |
Size: 2826240 |
Author:姚成富 |
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Description: 孔径时间、孔径抖动、孔径延迟时间——正本清源.-Aperture time and aperture jitter, the aperture delay- get to the root. Platform: |
Size: 755712 |
Author:边城 |
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Description: 使用ns2网络仿真软件时，统计无线场景吞吐量、延时、抖动和丢包率的通用脚本文件。-Using the ns2 network simulation software, statistical radio scene throughput, delay, jitter and packet loss rate of the general-purpose script file. Platform: |
Size: 3072 |
Author:ddeInde |
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Search - delay and delay jitter