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Sonar_Exp_beamform
说明： matlab 波束形成的仿真，包含时域，频域，相移波束形成(Matlab beamforming simulation, including time domain, frequency domain, phase-shifted beamforming)
- 2019-03-19 10:53:13下载
- 积分：1
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spatial modulation
a matlab code for spatial modulation
- 2017-09-16 01:09:55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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chirpmodsys
说明： 可实现，线性调频信号的产生，波形显示，波形解调和码字解调功能(Realizable, chirp signal generation, waveform display, waveform demodulation and codeword demodulation)
- 2020-06-18 15:20:02下载
- 积分：1
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frency_estiamte
OQPSK信号的频率估计，用的是相位与时钟联合估计算法，适用于突发的卫星信号等(OQPSK signal frequency estimation, using a phase estimation algorithm combined with the clock for emergency satellite signals)
- 2010-08-20 09:58:42下载
- 积分：1
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PCI17111
研华板卡pci1711驱动程序代码，可以在matlab中封装生成模块！(Advantech board pci1711 driver code , you can package in matlab generation module !
)
- 2020-10-11 15:57:33下载
- 积分：1
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DSP2833x_headers
这是DSP2833Xheraders.资料，初学者必备，更有详细实验Word(ads dsdfgghhh sdag dasd)
- 2017-09-08 21:49:02下载
- 积分：1
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shijuquxian
假设地下一倾斜界面，地层倾角为15°，地层是均匀的各向同性介质，地震波纵波传播速度为1500m/s，炮检距为0~500m，现绘制出折射波、直达波、反射波的时距曲线图(If the underground inclined interface, dip angle is 15 degrees, the formation is a uniform isotropic medium, seismic wave propagation velocity is 1500m/s, the offset is 0~500m, we draw the refraction wave, direct wave, reflected wave time distance curve)
- 2017-10-13 15:37:39下载
- 积分：1
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angularSptrumWithLen
角谱--VCSEL发出的光，经过透镜耦合进入光纤，仿真给出光由VCSEL进过透镜进入光纤的过程(Angular spectrum)
- 2013-10-10 20:58:21下载
- 积分：1
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卡尔曼滤波仿真程序用于匀速运动的目标跟踪
说明： 卡曼滤波程序 卡尔曼滤波仿真程序用于匀速运动的目标跟踪(Kalman filter program Kalman filter simulation program for target tracking with uniform motion)
- 2019-03-01 10:44:44下载
- 积分：1
