Description: 用来测试端到端的网络带宽，即可用tcp测，也可用udp测，非常好-used to test end-to-end network bandwidth can be measured using tcp, udp available measurement, and very good Platform: |
Size: 233472 |
Author:ww |
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Description: 麦克风阵列形成的波束beampattern图形，可调整麦克间距和信号带宽来得到需要的波束图-microphone array beam forming the beampattern graphics, Mike adjustable spacing and the signal bandwidth they need to beam map Platform: |
Size: 1024 |
Author:flyyynmgirl |
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Description: 本文件是基于高斯正弦波行的宽带脉冲波形设计,保证了相对带宽大,衰减满足3db要求-this document is based on the Gaussian line broadband sinusoidal pulse waveform design, ensuring a relatively large bandwidth. attenuation meet the requirements Z Platform: |
Size: 56320 |
Author:梁冰 |
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Description: This is a model of a QPSK modulation system for transmission over a bandpass channel with fc = 100 Hz and B = 30 Hz and AWGN at the receiver. SRRC fi lters with excess bandwidth α = 0.18 are employed. The receiver includes an NDA timing recovery loop followed by a DD phase recovery loop. -This is a model of a QPSK modulation system f or transmission over a bandpass channel with fc = 100 Hz and B = 30 Hz and AWGN at the receiver. SRRC Platform: |
Size: 15360 |
Author:xiaoying |
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Description: 仿真锁相环系统，可以仿真锁定时间。不同的环路带宽对系统的非理想特性！-PLL simulation system that can lock simulation time. Different loop bandwidth of the system of non-ideal characteristics! Platform: |
Size: 366592 |
Author:韩富强 |
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Description: 用matlab仿真实现了25 kHz 带宽内同时传送总共48 kbit/s 的两路语音(每路速率9. 6
kbit/s) 和两路数据信息(速率分别为19. 2 kbit/s 和9. 6 kbit/s) , 仿真结果表明达到了较好的误码性能。并比较了4 种数字调制方式下O FDM 系统的误码性能。-using Matlab Simulation bandwidth of 25 kHz simultaneous transmission within a total of 48 kbit/s 2 Road Voice (rate of 9 per road. 6 kbit/s) and two road data information (rate of 19. 2 kbit/s and 9. 6 kbit/s), the simulation results indicate achieve a better BER. And comparison of four types of digital modulation mode O FDM system BER. Platform: |
Size: 26624 |
Author:林志宏 |
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Description: 估算在给定门限下常用输入信号的带宽。函数将代表待分析波形的矢量signal作为输入-estimate in a given threshold under the common input signal bandwidth. Function will be representative of the waveform analysis as input vector signal Platform: |
Size: 1024 |
Author:meimei |
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Description: This m-file simulates MPSK (theoretical and simulated) with Gray coding
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).
-This m-file simulates MPSK (a theoretical nd simulated) with Gray coding This m-file simu lates MPSK (BPSK, QPSK, 8PSK) with theoretical and simulated results u sing Gray coding. Numerical examples of a satel lite link design are shown using QPSK and/or 8PS K when the bit rate (Rb) is greater than the chann el bandwidth Wc (Band-limited channel). Platform: |
Size: 7168 |
Author:王文 |
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Description: 高分辨率要求系统具有大的带宽，瞬时带宽的增加必将提高系统对硬件的要求，本文采用方便灵活的步进频率波形信号。脉间频率步进波形通过子脉冲载频的步进变化来获得大的有效带宽，使成像具有高分辨率，采用加窗和补零方法提高信噪比，但该信号对目标径向速度非常敏感。采用补零方法提高距离取样分辨率，使距离像细化，并用公式说明了补零只能提高距离取样分辨率，并不能改变频率步进信号的距离分辨能力。该信号波形对目标径向速度的敏感，使目标能量分散到邻近的距离单元造成距离分辨率下降，如果不事先进行速度补偿，直接对回波信号进行逆傅立叶变换，将使所成一维距离像发生频谱展宽，并伴有距离像发生平移。本文证明了当目标有径向速度时仍采用对回波信号直接进行逆傅立叶变换的方法将使一维距离像发生频谱展宽并伴有距离像发生频移，从而严重影响了一维距离像的质量。-high-resolution requirements of the system with large bandwidth, the increased instantaneous bandwidth will improve the system of hardware, In this paper, a flexible and convenient step frequency signals. Pulse frequency step-pulse waveform through the carrier frequency step to achieve great changes in the effective bandwidth. make imaging with high resolution, increasing the window and fill methods to improve signal-to-noise ratio is, However, the signal on the target radial velocity is very sensitive. Using zero-distance sampling method to improve resolution, so that distance as refinement, and formulates a zero-distance sampling can improve resolution, does not alter the frequency of the signal from stepping resolution capabilities. The signal waveform on the target radial velocity sens Platform: |
Size: 2048 |
Author:石榴石 |
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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. Platform: |
Size: 7168 |
Author:GF |
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Description: 估算带宽，先是计算输入信号单边带功率谱密度，然后估算出信号所占的带宽-Bandwidth estimation, first calculating the input signal is single sideband power spectral density, and then estimate the proportion of signal bandwidth Platform: |
Size: 1024 |
Author:罗燕群 |
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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). -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). Platform: |
Size: 3072 |
Author:cmosbjt |
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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.
-is used in pashload under linux network bandwidth testing the accuracy of a relatively high source /////////////////////////////////////Pathload is a tool for estimating the available bandwidthof 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. Platform: |
Size: 68608 |
Author:h |
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Description: 电缆遥测传输是测井系统传输数据的主要方式。针对测井电缆传输速率低、 带宽窄等瓶颈问题 ,提出应用
ADSL 宽带网络接入的离散多音频调制(DMT)技术进行电缆传输的调制和解调 ,从理论上对此技术进行了详细分析 ,并
通过计算机仿真试验 ,证明该方法对于提高电缆的频带利用率是可行的。-Cable telemetry transmit is a main way of data transmission in well logging systems. In this paper , due to a variety
of shortcoming of logging cable , such as low transmit speed and narrow bandwidth , a DMT technology with the
application of ADS L wide band is presented. This technology is analyzed theoretically in detail , and it has been proved
that this method is feasible in increasing the bandwidth using efficiency of the cable by compute emulation. Platform: |
Size: 367616 |
Author:秦赵真 |
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Description: 是winner II 即WIM2模型的软件matlab实现文档及源代码。实现日期是08年9月23日。可以支持100MHz带宽-Is the winner II model that WIM2 software matlab implementation documentation and source code. Implementation date is September 23, 2008. Can support 100MHz bandwidth Platform: |
Size: 349184 |
Author:展望 |
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Description: 本文针对无线网络中的多种服务类型，对
无线网络的带宽分配和接入方式进行分析，深入分析了不同类型的网络带宽资源
分配和调度算法在运行过程中对网络性能的影响。同时，本文也针对切换服务对
无线网络带宽分配的影响情况进行了分析，对切换服务的路由重建方式进行优
化，提高网络的实际运行性能。-This paper has
analyzed the bandwidth allocating process of wireless network with different services
types and compared the performance of different bandwidth allocating schemes. At
the same time, this paper also gives an eye to the impact brought by handoff process.
We have optimized the handoff rerouting process to improve the performance when
the handoff process tack place. The main work and contributions are presented in the
following aspects. Platform: |
Size: 6955008 |
Author:punk_812 |
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Description: 仿真线性调频连续波雷达的信号处理，设线性调频带宽为22MHz，时宽为200us ，雷达载频为10GHz，输入噪声为高斯白噪声。目标模拟分单目标和双目标两种情况。(Simulation of linear frequency modulation continuous wave radar signal processing, linear frequency modulation of 22 MHZ bandwidth, wide for 200 us, radar carrier frequency for 10 GHZ, the input noise is the gaussian white noise target simulation of single and double target two cases.) Platform: |
Size: 139264 |
Author:玉不琢币
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Search - BANDWIDTH matlab