We present a simple method for the adjustment of an in-phase (I) and quadrature-phase (Q) Armstrong-type modulator for use as a calibrator in precision noise metrology. The availability of relatively ...

In radio-frequency (RF) systems based on angle-modulated signaling, e.g., phase-shift keying (PSK) or analog frequency modulation (FM), amplitude variations due to the non-ideality of filter elements, ...

• Providing an interferometric optical modulator which can be utilized as a digital photonic clock circuit, a pulse width/amplitude modulator circuit, and a bi-stable optical-memory cell circuit. • ...

Amplitude Modulation and Demodulation Design This repository contains my project on Printed Circuit Board deisgn The project involves designing an Amplitude Modulator and Demodulator on a single PCB, ...

To get 500 Hz in the example circuit, C = 0.47 µF and R = 27 kΩ. Figure 2 shows the circuit response as PWM duty cycle versus dc control-signal level.

Design a circuit that would be used to create pulse amplitude modulation? Pulse amplitude modulation (PAM) converts an anlalog signal into a pulse type signal. PAM is also the first step in creating ...

If we replace the potentiometer VR1 with an AC signal plus DC bias signal in any of the previous Figures 3 to 17, the voltage controlled attenuators can become an amplitude modulator circuit instead.