Modulation speed is limited for the values in the figure because those values are optimized for an extended-frequency locking range. Figure 1. This three-IC sine-wave generator, which covers three ...

A very popular digital modulation scheme, binary phase shift keying (BPSK), shifts the carrier sine wave 180° for each change in binary state (Fig. 2). BPSK is coherent as the phase transitions ...

No modulation was present at that instant. Fig. 4 shows a 1 kHz sine wave modulating the carrier 100% positive and negative. The positive parts are the top and bottom peaks. They are mirror images of ...

[Part 1 discussed the methodology behind Class-D amplifiers and the ternary modulation scheme.] Results In order to perform this harmonic reduction, a pure sine wave must first be applied to the Class ...

V (t) = A (t) × cos [2πf c t + Φ (t)] In this equation, three parameters can be varied: amplitude, frequency and phase. Varying the sine wave’s amplitude achieves AM and pulse modulation.

In DDS-mode, only a few commands are needed to e.g. generate a sine wave (orange block), accelerate the frequency (blue block) and lower the amplitude (green block). 23 different AWGs are able to ...

Frequency Modulation (or FM) synthesis is a simple and powerful method for creating and controlling complex spectra, introduced by John Chowning of Stanford University around 1973. In its simplest ...