Search - uwb spectrum

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[matlab] IR DL : 0: 把I、Q 两路信号分别作FFT ,找出频域内信号的幅度,即可算得两路分量的幅度一％致性把I、Q两路信号合成一个复数信号,作FFT ,对得到的频谱求镜像抑制比。-The I, Q signals, respectively, for the two FFT, to identify the range of frequency domain signal can be considered two-way range of 1 weight of the letter I, Q synthesis of two-way signal a plural signal for FFT, to obtain the spectrum for image rejection ratio.
Date : 2025-12-29 Size : 1kb User : 林恩
[matlab] uwb4 DL : 0: uwb信号中高斯脉冲的产生，频谱等等的程序-Gaussian uwb pulse signal generation, spectrum of procedures and so on
Date : 2025-12-29 Size : 17kb User : 杨水
[matlab] Cognitiveradiospectrumdetectionalgorithmtoachievet DL : 0: 认知无线电的频谱检测算法的MATLAB实现很全-Cognitive radio spectrum detection algorithm to achieve the MATLAB
Date : 2025-12-29 Size : 69kb User : 郭明
[matlab] chengxu DL : 0: 为了提高通信系统的信息传输速率，人们提出了UWB通信系统，即Ultra-Wideband 通信系统。在UWB系统中，信号的带宽一般都在GHz的量级，这么宽的带宽造成了UWB系统和现有的通信系统频谱的重叠。为了降低对现有通信系统的影响，UWB信号的设计需要满足一定的频谱模板。如果一个信号的频谱基本满足频谱模板的规定（即在绝大部分频段内功率小于规定区间的上限），我们可以认定其为一个UWB信号。-In order to improve communication systems, information transmission rate of UWB communications systems have been proposed, namely, Ultra-Wideband communication systems. In the UWB system, the signal bandwidth will generally be in the order of GHz, caused such a wide bandwidth of UWB system and the existing communications system spectrum overlap. In order to reduce the impact of the existing communication systems, UWB signal design needs to meet certain spectral mask. If a signal spectrum can basically meet the spectral mask (that is, in most of the provisions of band power is less than the maximum range), we can assume it as a UWB signal.
Date : 2025-12-29 Size : 29kb User : 张晓风
[matlab] PPM_TH_UWB DL : 0: 该段程序包括跳时超宽带信号的产生及其频谱特性-The section of program, including UWB signal generation and spectrum
Date : 2025-12-29 Size : 4kb User : wangdan
[matlab] OOK_Psd DL : 0: 周期高斯一介导、高斯二介导即高斯脉冲（即UWB信号）的功率谱图像，对应不同的占空比和不同的脉冲形式，随着阶数的增加中心频率右移，频谱也为高斯形式，且随着周期数增多，呈现线谱形式-Cycle Gaussian ordinary derivative, ie the Gaussian two-mediated Gaussian pulse (the UWB signal) of the power spectrum image, corresponding to different pulse duty cycle and a different form, with the increase of the order of the center frequency shifted to the right, the spectrum also Gaussian form, and with the number of cycles increased, showing the form of line spectrum
Date : 2025-12-29 Size : 5kb User : 周玉佳
[matlab] PSD_0705 DL : 0: 在不同UWB信号采用不同的调制方式，OOK、PPM调制下的功率谱计算，并观察周期数对UWB信号频谱的影响，7.5制作-UWB signals in different ways using different modulation, OOK, PPM modulation of the power spectrum, and observe the number of cycles on the impact of UWB signal spectrum, 7.5 Production
Date : 2025-12-29 Size : 4kb User : 周玉佳
[matlab] Channel-ofdm DL : 0: uwb基础源码，包括uwb信号产生、各种调制方法、信号功率谱密度频谱特性、以及信道仿真等。-uwb basis of source, including uwb signal generator, various modulation methods, the signal power spectral density spectrum, and channel simulation.
Date : 2025-12-29 Size : 37kb User : 赵如意
[matlab] FCC DL : 0: UWB系统中FCC对UWB频谱的限制仿真（室内的）15-FCC restrictions on UWB spectrum simulation (indoor)
Date : 2025-12-29 Size : 1kb User : 杨静