Search - doppler

Search - doppler - List

【Communication】 BD_test DL : 0: 北斗导航接收机测试程序，非常具有参考价值-Beidou navigation receiver testing procedures, very useful
Update : 2024-05-20 Size : 259072 Publisher : 何启明
【hospital software system】 CSGZZ DL : 0: 超声影像工作站系统可与各种型号的B超、彩超连接，实时采集、显示、处理、存贮超声图像，采用全数字化处理技术，可对各种超声图像进行动态采集-Ultrasound imaging workstation system with various models of B-ultrasound, color Doppler ultrasound to connect, real-time acquisition, display, processing, storing ultrasound images, using all digital processing techniques, can be a variety of dynamic ultrasound images acquisition
Update : 2024-05-20 Size : 991232 Publisher : 张林军
【Software Engineering】 csbyj DL : 0: 超声多普勒流量计在流量测量、企业管理及流量监测与控制中具有广阔的应用前景, 但目前大部分流量计仍使用过零检测法,精度不高。本文从理论上介绍了采用频谱分析法消除了理论上的误差, 提高了测量精度。同时介绍了硬件电路电路、软件处理及试验结果。-Doppler flowmeter in the flow measurement, enterprise management and traffic monitoring and control has broad application prospects, but most still use flowmeter zero crossing detection method, the accuracy is not high. This paper theoretically introduce the use of spectrum analysis method to eliminate the theory of error, improve the measurement accuracy. At the same time introduce a hardware circuit circuits, software and test results of treatment.
Update : 2024-05-20 Size : 187392 Publisher : 李明
【Other】 2 DL : 0: a环相关的复合系统多普勒频移抑制模型复合系统为扩频测距与通信复合系统-a ring-related composite system Doppler shift inhibition model composite system for spread spectrum ranging systems and communication composite
Update : 2024-05-20 Size : 3702784 Publisher : 1
【matlab】 channel DL : 0: 对多径信道的仿真输入码元,是一行矩阵,可以是实数也可以是复数％fs是输入码元的比特率％fd是多普勒频移％n_delay是多径信道的径数％t_delay是多径信道各径的时延时间％p_delay是多径信道各径的功率db值 -Of the multipath channel simulation input symbol is a line matrix, can be a real number can also be plural fs is the input symbol of the bit rate fd is the Doppler frequency shift is n_delay multipath channel diameter of a few t_delay is multipath channel time delay of the Path p_delay is multi-path channel the power of the diameter db value
Update : 2024-05-20 Size : 4096 Publisher : 李洁
【source in ebook】 ofdmMultipathDopplerEffects DL : 0: Update : 2024-05-20 Size : 1985536 Publisher : 郝园园
【Communication-Mobile】 SC_FDMA DL : 0: 应用MATLAB编程，LTE系统中上行链路SC-FDMA信号生成的程序-Application of MATLAB programming, LTE system uplink SC-FDMA signal generation process
Update : 2024-05-20 Size : 1024 Publisher : 杨睛
【Special Effects】 fzxs DL : 0: 雷达信号回波仿真多普勒-Echo Doppler radar signal simulation
Update : 2024-05-20 Size : 1024 Publisher : fyj
【matlab】 blocksandnoisdopp DL : 0: 1.对染噪doppler信号进行小波包3层分解：分解层次j=1,2时，都是信号的概貌；当j=3时，反映概貌的已几乎不含噪声分量，而其它噪声分量的幅值已很小。 2.对加噪Blocks信号进行不同阈值及不同阈值的使用方式降噪。 -1. On noise pollution doppler signal decomposition of wavelet packet Layer 3: decomposition level j = 1,2, are the signal profiles when j = 3 to reflect the general picture has been almost non-noise component, while other noise components amplitude has been very small. 2. Blocks of noise signals of different thresholds and different thresholds for the use of noise reduction methods.
Update : 2024-05-20 Size : 3072 Publisher :
【GPS develop】 GPSIntroduction DL : 0: 五十年代未，原苏联发射了人类的第一颗人造地球卫星，美国科学家在对其的跟踪研究中，发现了多普勒频移现象，并利用该原理促成了多普勒卫星导航定位系统TRANsIT的建成，在军事和民用方面取得了极大的成功，是导航定位史上的一次飞跃。为了提高卫星定位的精度，美国从1973 年开始筹建全球定位系统GPS -Not the fifties, the former Soviet Union launched the mankind s first artificial Earth satellite, the U.S. scientists in their follow-up study, found the phenomenon of Doppler shift, and led to use of the principle of Doppler satellite navigation and positioning system TRANSIT completed, in the military and civilian achieved a great success, is the history of navigation and positioning of the first leap. In order to improve the accuracy of satellite positioning, the United States since 1973 to build the Global Positioning System GPS
Update : 2024-05-20 Size : 48128 Publisher : hushi
【Other】 radarechoSimulation DL : 0: 本文首先介绍了近些年来雷达模拟器获得广泛应用及其原因，然后对目标模型、杂波模型和机载下视脉冲多普勒雷达的频谱分布进行了分析。接着，研究了雷达回波信号模拟的实现方法，重点是采用网格映象法对地杂波信号的模拟进行了分析和推导，并采用此方法对瑞利分布的高斯谱杂波、雷达回波信号进行了仿真和分析。最后，针对用于某机载雷达信号模拟器系统的数字信号处理器进行了设计和分析。 -This paper first introduces the radar simulator in recent years is widely available and the reasons for, and then on the target model, and the clutter model of airborne pulse Doppler radar, as under the spectrum distribution is analyzed. Then, to study radar signal simulation methods, with emphasis on the use of grid mapping method to the simulated clutter signal analysis and derivation, and use of this method, the Gaussian distribution of the Rayleigh spectrum of clutter, the radar echo signal simulation and analysis. Finally, for an airborne radar signal simulator system digital signal processor has been designed and analyzed.
Update : 2024-05-20 Size : 2909184 Publisher : 萝卜
【Game Server Simulator】 Realtime_software_simulation_of_high_frequency_rad DL : 0: 基于Ｗａｔｔｅｒｓｏｎ模型的短波信道实时软件模拟韩志学，毕文斌，张兴周摘要：针对短波信道多径、衰落、多普勒频移及扩展等特点，设计了一种基于Ｗａｔｔｅｒｓｏｎ模型的短波信道模拟器，该模拟器采用全软件实现，具有简单易行、可移植性强、费用低等优点，并可实时嵌入到调制解调器中。通过对仿真中关键技术进行改进，提高了系统性能。仿真结果验证了该模拟器的有效性。 -Based on the Watterson HF channel model for real-time software simulation of Han Xue,毕文斌, Zhang Zhou Abstract: In view of short-wave channel multipath, fading, Doppler frequency shift and expansion features such as, design a model based on the Watterson HF channel simulator, the simulation device-wide software implementation with a simple, portability, and low cost, and real-time embedded modems. Through the simulation of key technologies to improve the improve the system performance. The simulation results confirm the validity of the simulator.
Update : 2024-05-20 Size : 61440 Publisher : 张杰
【matlab】 new_signal_processing DL : 0: 实现多普勒信号的处理。包括信号平滑等操作-Doppler signal processing to achieve. Including the signal smoothing operation, such as
Update : 2024-05-20 Size : 865280 Publisher : dfasdf
【matlab】 signal1 DL : 0: 线性调频信号是一种雷达常用的电磁波信号，当雷达信号检测到目标时候，反射后得到雷达回波信号，此时由于多普勒效应，信号的频率发生偏移，这个源码仿真出雷达检测到目标距离信息的回波信号。-LFM signal is a commonly used electromagnetic radar signal, when the radar signal detection to the target time, after reflection of radar echo signal, at this time due to Doppler effect, the signal
Update : 2024-05-20 Size : 1024 Publisher : 张直
【Program doc】 channel_models DL : 0: 台湾一本通信书籍中讲述无线信道的一章，对多径，多普勒等讲得比较清楚明白-Taiwan a communication channel on the books of the First Chapter of multipath, Doppler, etc. stood out clearly understand
Update : 2024-05-20 Size : 899072 Publisher : 李林思
【matlab】 lfm_jc DL : 0: 近程模式下的单脉冲信号产生，频谱图,模糊函数图,模糊度等高线图，自相关函数图和多普勒敏感度-Short-range mode of the single pulse signal generator, spectrum map, fuzzy function maps, contour map of ambiguity, since the correlation function maps and Doppler sensitivity
Update : 2024-05-20 Size : 1024 Publisher : 汪洋
【Other】 bpsk DL : 0: 一种二相码信号多普勒补偿方法的研究与实现，并实现一种基于数字动目标检测 (DM TD)的二相码信号多普勒补偿方法-A two-phase code signal Doppler compensation method of research and realize, and realize a moving target detection based on digital (DM TD) of the two-phase code signal Doppler compensation method
Update : 2024-05-20 Size : 329728 Publisher : 汪洋
【matlab】 MultipathDopplerEffects DL : 0: 主要介绍关于短波通信中多径中多普勒的影响，很好的资料-Mainly on short-wave communications in the Doppler multipath effects of good information
Update : 2024-05-20 Size : 1139712 Publisher : wudan
【Communication-Mobile】 tgn_channel DL : 0: TGN五类信道的建模，包括了抽头时延，抽头功率，多普勒频移参数的建模。-TGN five-channel model, including a tap delay, tap power, Doppler frequency shift of the modeling parameters.
Update : 2024-05-20 Size : 1024 Publisher : 刘云
【Windows Develop】 barkcode DL : 0: 巴克码识别器　输入一串二进制　输出识别结果-Barker Code to identify a string of binary input output identification results
Update : 2024-05-20 Size : 1024 Publisher : ｓｅｎｔａｌ

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