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Description: 由低通数字变换为高通（带阻）数字频带的变换示例,附频谱特性图-by low-pass digital transformation of the high-pass (with resistance) digital bandwidth transform example, the map attached spectrum
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Size: 813 |
Author: 边际星 |
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Description: 设采样频率为1Hz，对于淹没在复高斯白噪声中的信噪比为 的两个复LFM信号，采用子带带宽为0.1Hz的升余弦滤波器，共9个子带滤波器构成的滤波器组，时间窗为窗长为256的矩形窗，进行仿真-based sampling frequency of 1Hz. For drowned in the complex Gaussian white noise to the signal-to-noise ratio of 2 Minute LFM, using sub-band bandwidth of 0.1 Hz or cosine filter, a total of nine sub-band filter a filter group, time window to window to 256 long rectangular window simulation
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Size: 1130 |
Author: eric |
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Description: 格状编码调制是为解决卫星通信中信道噪声对接收的影响及带宽的限制而产生的，其将信道编码与调制很好的结合起来，并且能发挥各自的优点，这种方法在不增加带宽和相同的信息速率下可获得3~6dB的功率增益。-trellis coded modulation for satellite communications solutions Channel noise on the receiver bandwidth and the impact of the restrictions, it will channel coding and modulation good combine, and can play to their respective advantages, This method does not increase in the same bandwidth and speed of information available under the three-6dB gain power.
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Size: 7458 |
Author: GF |
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Description: 功能界面漂亮的带宽使用量监视器-pretty functional interface bandwidth usage monitors
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Size: 134701 |
Author: 王名 |
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Description: GPRS(General Packet Radio Service)是通用分组无线业务的简称。GPRS是GSM Phase2.1规范实现的内容之一，能提供比现有GSM网9.6kbit/s更高的数据率。GPRS采用与GSM 相同的频段、频带宽度、突发结构、无线调制标准、跳频规则以及相同的TDMA帧结构。因此，在GSM系统的基础上构建GPRS系统时，GSM系统中的绝大部分部件都不需要作硬件改动，只需作软件升级。-GPRS (General Packet Radio Service) is a General Packet Radio Service abbreviation. GPRS GSM Phase2.1 norms to achieve one of the elements that can provide more than the existing GSM network 9.6kbit / s higher data rate. GSM and GPRS using the same frequency and bandwidth, unexpected structure, the wireless standard modulation, frequency hopping and the same rules TDMA frame structure. Therefore, in the GSM system builds on the GPRS system, the GSM system of most components do not need to make hardware changes, only for software upgrades.
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Size: 1071941 |
Author: 齐征 |
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Description: java语言开发的P2P流媒体系统，“Stream-2-Stream implements multicast+, a next generation streaming protocol. Multicast+ is more efficient and requires less bandwidth than direct streaming (e.g. shoutcast/icecast). Stream-2-Stream (abbreviated \"s2s\" or \"S2S\") stations have no user limit stations can be set up without paying a fortune for bandwidth. Stream-2-Stream saves bandwidth by passing streams from one peer to another through multicast and unicast p2p, rather than everyone getting a stream from one central server (Shoutcast/Icecast). ”更多：http://s2s.sourceforge.net/about.php
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Size: 734030 |
Author: zhaorongchang |
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Description: This m-file simulates MPSK (BPSK,QPSK,8PSK)with theoretical and simulated results using Gray coding. Numerical examples of a satellite link design are shown using QPSK and/or 8PSK when the bit rate(Rb)is greater than the channel bandwidth Wc (Band-limited channel).
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Size: 3226 |
Author: cmosbjt |
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Description: ％ BackgroundRemoval=[true],false
％ Gain=[tsquare],linear
％ BandPass=[paul],fircls
％ CenterFrequency, auto (determined using pburg)
％ BandWidth=auto (a fraction of the CenterFrequency default=0.25)
％ ContrastStretch=[true],false
％ HilbertAmplitude=[true],false
％ HorizontalStacking=1 (a number of traces)
％
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Size: 3685 |
Author: huguangfeng |
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Description: 提取音频信号的带宽，matlab源代码，仅供参考
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Size: 723356 |
Author: zhaodapeng |
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Description: Squaring circuits are an important building block for impulse-radio UWB non-coherent receivers. This work proposes a squarer, based on the quadratic law of saturated transistors. Such a circuit has already been proposed for lower frequency applications, therefore this work focuses on the extension to ultra wide bandwidth, with particular care to the consequences related to the deviation from the ideal quadratic law of 0.18μm CMOS transistors.
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Size: 280842 |
Author: pmet2007 |
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Description: This paper presents the key circuits of a 1MHz bandwidth, 750kb/s GMSK transmitter. The fractional-N synthesizer forming the basis of the transmitter uses a combined phasefrequency
detector (PFD) and digital-to-analog converter (DAC) circuit element to obtain >28dB high frequency noise reduction when compared to classicalfrequency synthesis.
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Size: 498848 |
Author: 谢振 |
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Description: Dynamic Bandwidth Assignation for EPON system.
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Size: 81897 |
Author: 马福建 |
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Description: pashload是应用在linux下的网络带宽测试源程序精确度比较高
/////////////////////////////////////
Pathload is a tool for estimating the available bandwidth
of an end-to-end path from a host S (sender) to a host R (receiver).
The available bandwidth is the maximum IP-layer
throughput that a flow can get in the path from S to R,
without reducing the rate of the rest of the traffic in the path.
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Size: 68524 |
Author: h |
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Description: Switch,Ic,driver,英飛凌6996m驅動程式,包括bandwidth-control以及basic-control功能
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Size: 60097 |
Author: hua |
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Description: NIST Net – A Linux-based Network Emulation Tool, It is a raw IP packet filter with many controllable channel parameters such as packet loss ratio, jitter, bandwidth variation, delay, and network buffer size. To simulate different network environments
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Size: 2309412 |
Author: 北科 |
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Description: 编程测试并行平台MPI层的带宽和延迟：
单向通信时间简单表示为：t＝Latency＋Message_Size/Bandwidth
利用该方程得到系统的带宽和延迟
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Size: 791 |
Author: kingbirdji |
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Description: 在VB中画曲线的一个例子
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Size: 9471 |
Author: sjlyc123 |
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Description: 1.Ultra-wideband interference mitigation using cross-layer cognitive radio
2.Time-varying interference spectral analysis for Cognitive UWB networks
3.Cosine Modulated Filterbank Technique for Cognitive UWB
4.Coexistence Issues in Cognitive Radios Based on Ultra-Wide Bandwidth Systems
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Size: 3468396 |
Author: 常春 |
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Description: The µ -law algorithm (pronounced myoo-law) is a companding algorithm, primarily used in the digital telecommunication systems of North America and Japan. As with other companding algorithms, its purpose is to reduce the dynamic range of an audio signal. In the analog domain, this can increase the signal-to-noise ratio (SNR) achieved during transmission, and in the digital domain, it can reduce the quantization error (hence increasing signal to quantization noise ratio). These SNR increases can be traded instead for reduced bandwidth for equivalent SNR.
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Size: 966744 |
Author: junwang |
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Description:
With the advent of multimedia, digital signal processing (DSP) of sound has emerged from the shadow of bandwidth-limited speech processing. Today, the main appli- cations of audio DSP are high quality audio coding and the digital generation and manipulation of music signals. They share common research topics including percep- tual measurement techniques and analysis/synthesis methods. Smaller but nonetheless very important topics are hearing aids using signal processing technology and hardware architectures for digital signal processing of audio. In all these areas the last decade has seen a significant amount of application oriented research.
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Size: 2954636 |
Author: tz1985 |
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