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DS_hw1
Simple recursive function test
- 2012-06-10 13:27:23下载
- 积分：1
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hilbert
说明： 产生正弦信号时域波形及频谱，并通过希尔伯特滤波器。其中希尔伯特滤波器有两种产生方式，一是使用MATLAB自带的FDAtool；二是程序编写。(The time-domain waveform and spectrum of sinusoidal signal are generated and passed through Hilbert filter. There are two ways to generate Hilbert filter, one is to use FDAtool in MATLAB, the other is to write programs.)
- 2019-01-09 15:16:42下载
- 积分：1
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BPSK调制仿真
bpsk调制仿真，可直接用
1、数字调制方法
数字调制就是把数字基带信号的频谱搬移到高频处，形成适合在信道中传输的带通信号。基本的数字调制方式有振幅键控（ASK）、频移键控（FSK）、绝对相移键控（PSK）、相对（差分）相移键控（DPSK）。在接收端可以采用想干解调或非相干解调还原数字基带信号。
数字信号的传输方式分为基带传输和带通传输。然而，实际中的大多数信道（如）无线信道具有丰富的低频分量。为了使数字信号在带通信道中传输，必须用数字基带信号对载波进行调制，以使信号与信道的特性相匹配。(1, digital modulation method
Digital modulation is the transfer of the spectrum of a digital baseband signal to a high frequency to form a bandpass signal suitable for transmission in the channel. The basic digital modulation methods are amplitude keying (ASK), frequency shift keying (FSK), absolute phase shift keying (PSK), and relative (differential) phase shift keying (DPSK). At the receiving end, the digital baseband signal can be restored by using dry demodulation or non-coherent demodulation.
Digital signal transmission methods are divided into baseband transmission and bandpass transmission. However, most channels in practice, such as wireless channels, have rich low frequency components. In order for a digital signal to be transmitted in a band channel, the carrier must be modulated with a digital baseband signal to match the signal to the characteristics of the channel.)
- 2019-05-28 10:46:01下载
- 积分：1
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e8_Config_Backup
说明： 中兴h608b备份文件，usb口恢复超级管理员帐号(ZTE h608b backup file, usb super-administrator account to restore the mouth)
- 2009-07-27 19:26:47下载
- 积分：1
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bpf1
带通滤波器matlab源代码
菜鸟看看有用的(band pass filter Matlab source code as they see useful)
- 2007-04-18 10:46:03下载
- 积分：1
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对于水声信道估计的大量参考文献
信道估计的大量参考文献，尤其是对于水声信道的估计，便于下载(Channel estimation of a large number of references, especially for the estimate of the underwater acoustic channel, easy to download)
- 2012-06-04 10:10:18下载
- 积分：1
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gmsk
说明： ：为了论证高斯最小频移键控(GMSK)信号在时域和频域的相互关系，分析了GMSK信
号调制原理和滤波器传递函数，建立了GMSK调制和解调模型。(: In order to demonstrate Gaussian Minimum Shift Keying (GMSK) signal in time domain and frequency domain, the relationship between the analysis of GMSK signal modulation principle and the filter transfer function established model for GMSK modulation and demodulation.)
- 2010-03-16 15:43:36下载
- 积分：1
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波束形成
说明： 单频、宽带信号的线阵、面阵波束形成，用的是fft能量或者幅度求和的做法(Beamforming of linear array and area array for single frequency and broadband signals)
- 2020-09-28 13:48:01下载
- 积分：1
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MyMath
C++实现多种常用数字信号处理算法，傅里叶变换，FIR滤波器，IIR滤波器，卷积等(C++ implementation of a variety of commonly used digital signal processing algorithms, Fourier transform, FIR filters, IIR filters, convolution, etc.)
- 2016-01-12 11:39:55下载
- 积分：1
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terminal3
说明： 该资源为应用GNUradio工具，对USRP的开发，主要实现了频谱感知，以及根据频谱感知的结果进行ofdm通信的功能(This resource is the development of USRP using gnuradio tool. It mainly realizes the function of spectrum sensing and OFDM communication according to the result of spectrum sensing)
- 2020-03-04 12:10:50下载
- 积分：1
