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构建OFDM调制的数字电视信号DVB-T，得到其时域、频谱图，并对其上变频，模拟其发射！-Construction of OFDM modulation digital television signals DVB-T, by the time domain, frequency spectrum, and its up-conversion, analog of its launch!
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这是一个相对完整的OFDM通信系统的仿真设计，包括编码，调制，IFFT，上下变频，高斯信道建模，FFT，PAPR抑制，各种同步，解调和解码等模块，并统括系统性能的仿真验证了系统设计的可靠性。
-This is a relatively complete simulation of OFDM communication system design, including coding, modulation, IFFT, the upper and lower frequency, Gaussi
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CFFT is a radix-4 fast Fourier transform (FFT) core with configurable data width and
a configurable number of sample points in the FFT.
Twiddle factors are implemented using the CORDIC algorithm, causing the gain of the
CFFT core to be differen
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FSK调制解调 通过有扰信道 输出滤噪声 频率谱密度估计-FSK modulation and demodulation are disturbed by the noise channel output filter frequency spectral density estimation
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蓝牙全双工语音和数据传输
蓝牙调制和跳频
蓝牙语音传输的相关程序-Bluetooth full duplex voice and data transfer Bluetooth modulation and frequency hopping Bluetooth voice transmission procedures
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As traditional control schemes, open-loop Hysteresis and closed-loop pulse-width-
modulation (PWM) have been used for the switched reluctance motor (SRM) current controller. The Hysteresis controller induces large unpleasant audible noises because
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程序为常规AM，DSB，SSB调幅信号的调制与解调的MATLAB程序，其中单边带调制用两种方法进行调制：一种为频谱直接变换，另一种为希尔伯特变换实现-MATLAB for norm AM,DSB and SSB modulation and demodulation,besides,modulation for SSB,has tow ways:frequency spectrum transform and hilbert transform
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这是一个相对完整的OFDM通信系统的仿真设计，包括编码，调制，IFFT，上下变频，高斯信道建模，FFT，PAPR抑制，各种同步，解调和解码等模块，并统括系统性能的仿真验证了系统设计的可靠性。
-This is a relatively complete simulation of OFDM communication system design, including coding, modulation, IFFT, the upper and lower frequency, Gaussi
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幅度调制,双边带信号产生、双边带调幅的时域表示式及频谱-Amplitude modulation (AM),double side-band signal generation,the time domain expression and frequency spectrum of double side-band Amplitude modulation
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模拟调制：幅度调制中的双边带幅度调制的时域表示式和频谱，及代码实现
-Analog modulation: amplitude modulation with amplitude modulation in bilateral expression in time domain and frequency spectrum, and code implementation
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双边带调制及频谱仪的设置，如何在高频、低频中观测频谱特性-Modulation and spectrum analyzer with a bilateral setting, how high-frequency, low-frequency spectrum observed
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Modulation Index and varying carrier frequency for PWM inverter with outputs
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对讲机的用途很广泛，发送原理是把音频信号转换成电信号,再通过调制之后利用特定的频率范围发送出去。
接收是利用接收器对特定的频率范围之内收到的信号通过解调之后通过扬音器发出收到的信息声音
-Radio is so widely used, principle is to send the audio signals into electrical signals, then through the modulation after the use of a particular freq
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Orthogonal Frequency Division Multiplexing (OFDM) is a spectrally efficient multicarrier modulation technique for high speed data transmission over multipath fading channels. High Peak-to-Average Power Ratio (PAPR), which leads to power inefficiency
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In this paper, we describe a novel approach for reducing the power consumption and complexity of a multiband orthogonal frequency-division multiplexing (MB-OFDM) ultrawideband (UWB) system by applying ideas from pulsed UWB ystems. The approach is qui
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红外测试程序，用单片机通过发射管发射38K的调制频率码，由一体化接收并解码由发光管显示。-Infrared testing procedures, with the microcontroller through the launch tube launch 38K code modulation frequency, from integration to receive and decode the LED display.
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FSK modulation matlab model
frequency deviation
FSK modulacia so spojitou fazou je zalozena na frekvenciach,
t.j. ak k=f/tb a k je celociselny nasobok oboch frekvencii.
Ak k nie je celociselny nasobok, potom je to FSK modulacia s nespoji
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EVA下面的通用定时器T1工作于连续增/减计数模式，产生三角载波，载波频率为3000Hz，载波比N=60，因此调制波形正弦波的频率为50Hz。-EVA below T1 work general timer continuous increase/decrease counting mode, triangle, carrier frequency modulated carrier for 3000Hz, N = 60, therefore the sine wave modulation f
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该高频正弦信号发生器基于直接数字频率合成（DDS）和数字锁相环技术（DPLL），以微控制器（MCU）和现场可编程逻辑门阵列（FPGA）为核心，辅以必要的外围电路设计而成。系统主要由正弦信号发生、红外遥控、高速模数（A/D）－数模（D/A）转换、信号调制和后级处理等模块组成。-The high-frequency sinusoidal signal generator based on Direct Digital Synthesis (DDS) and digital PLL (DPLL), a
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本书是关于无线衰落信道方面的一本好书，书中内含MATLAB代码！
-All relevant components of a mobile radio system, from digital modulation techniques over channel coding through to network aspects, are determined by the propagation characteristics of the channel. Therefore, a pr
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