Digital Modulation - Electrónica de comunicaciones

Modulate the phase of a generated clock.

https://www.edn.com/design/test-and-measurement/4328465/System-implements-digital-clock-modulation

http://idsg.eecs.berkeley.edu/sww/software/matlab/toolbox/comm/tutor28.html

By Ky T. Luu, Wayne Duello and Anders Mattsson Harris Broadcast Communications Advances in AM Modulation Techniques to Improve Digital Transmission of HD Radio and DRM ABSTRACT Modern digital transmission standards (HD Radio, DRM) demand higher performance from [. ]

https://analfatecnicos.net/archivos/73.AM-HDRadio-DRM-Harris.pdf

While the term is used in many different ways, on this blog I would suggest that hobby broadcasting is about trying new ideas and exploring interesting concepts. Unlike community radio, which is focused on the audience, I feel that true hobby broadcasting is mostly about the broadcaster. Trying new frequency bands, using different content delivery modes and exploring little used technologies .......

https://lowpowerradio.blogspot.com/2013/06/hobby-radio-broadcasting.html

LTspice merupakan salah satu program SPICE(Simulation Program with Integrated Circuit Emphasis) yang digunakan untuk simulasi rangkaian elektronik analog/digital. LTspice sangat powerfull untuk memeriksa disain dan untuk memprediksi karakteristik dari rangkaian elektronik seperti IC, Op-amp, transistor, resistor, kapasitor dan lainnya. LTspice dibuat oleh Linear technolo.......

https://etekno.blogspot.com/2012/07/tutorial-ltspice-iv.html

Essentials about phase modulation, PM, including how phase is used to carry both analogue and digital signals as modulation.

http://www.radio-electronics.com/info/rf-technology-design/pm-phase-modulation/what-is-pm-tutorial.php

A short sidebar on Constant Envelope Carrier Modulation -- From the Spread Spectrum / RF / CDMA / Wireless / PCS / Advanced Digital Communications e-zine -- Your One Stop Source of News, Information and Reference Material on Spread Spectrum, RF, Wireless.

http://sss-mag.com/cem.html

Phase modulation, PM can be used for both analogue and digital data, but it is for data & phase shift keying that it is most widely used . . read more

https://www.electronics-notes.com/articles/radio/modulation/phase-modulation-what-is-pm-tutorial.php

Maxim > Design Support > Technical Documents > Application Notes > Voltage References > APP 3435 Keywords: manchester,digital,communication,rf,radio,frequency,encoding,encode,rke,keyless entry,modulation,bpsk APPLICATION NOTE 3435 Manchester Data Encoding for Radio Communications Jan 26, 2005 Abstract: Manchester encoding has gained wide acceptance as the modulation scheme for low-cost radio-frequency transmission of digital data. This form of binary phase-shift keying is a simple [..].......

http://pdfserv.maximintegrated.com/en/an/AN3435.pdf

This post provides a quick introduction to Direct Digital Synthesis (DDS) on the Arduino Due. The sample sketch outputs a sinewave at a 44. 1Khz sample rate with 12 bit resolution using the built in Digital To Analog Converter (DAC). A related sketch which provides more interesting audio output without the explanation can be found here -https://rcarduino.blogspot.com/2012/11/quick-and-dirty-synth-for-arduino-due. htmlAll of the Audio projects on RCArduino are based on this same DDS technique des.......

https://rcarduino.blogspot.com/2012/12/arduino-due-dds-part-1-sinewaves-and.html

ST Microelectronics lanza al mercado electrónico el circuito integrado STA350BW, este chip el cual es el primero de su clase que cuenta con un amplificador de audio de 50w de alta eficiencia en clase D, genera tan solo unos pocos grados de temperatura lo que hace que no necesite ningún tipo de disipador de calor externo (heatsink ?free). IC STA350BW de ST MicroelectronicsEs ideal para s.......

https://sharatronica.blogspot.com/2011/05/amplificador-de-audio-sin-disipador-de.html

DSP, DSP Library, DFPlus, Digital filter designer, Digital filter design, Digital Signal Processing, Fourier, Fourier Transform, DSP software, DSP, FFT, Fourier, Fourier Transform, DFT, FIR, IIR, filter, ANSI C Source DSP Library, Eclipse, Eclipse IDE, Texas Instruments, TI, TI DSP, TMS320, C40, C44, C30, C31, C32, TMS320C3x, TMS320C4x, TMS320C30, TMS320C40, TMS320C60, TMS320C6x, TMS320C6000, C6000, C6x, c62x, C67x, C64x, TMS320C5000, C5000, C5x, c54x, Analog Devices, ADSP21000, ADSP2106x, ADSP2.......

http://www.numerix-dsp.com

Erik Diez (Keysight/Agilent Technologies) wrote a great article in Electronic Design describing the fundamentals of signal generators - indispensable tools for developing and testing electronic devices and systems. Being from Keysight, of course they lay claim to the beginnings of the electronic test-and-measurement industry: the model 200A audio oscillator for the Walt Disney Company?in 1940, used for the movie ?Fantasia. ?Today, typical applications include RF/IF signal generation and LO subst.......

https://saeligcoinc.blogspot.com/2016/08/the-fundamentals-of-signal-generation.html

The RF module, as the name suggests, operates at Radio Frequency. The corresponding frequency range varies between 30 kHz & 300 GHz. In this RF system, the digital data is represented as variations in the amplitude of carrier wave. This kind of modulation is known as Amplitude Shift Keying (ASK). Transmission through RF is better than IR (infrared) because of many reasons. Firstly, signals through RF can travel through larger distances making it suitable for long range applications. Also, while .......

https://electronicsfusion.blogspot.com/2011/06/434-mhz-ask-transmitter-and-receiver.html

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