Based on the analysis of generation and demodulation of binary frequency shift keying in digital communication, this paper introduces that using one set of frequency discrimination circuit to demodulate binary frequency shift keying signal in special working environments.

Based on photoelectric rotary encoder feedback,a novel frequency discrimination scheme is proposed.

An airborne wind lidar system s frequency discriminator based on a dual channel tunable Fabry-Perot interferometer;

Two phase -shift - networks of frequency discriminator are given circuit and layout examples.

Then the differential frequency discrimination method, especially at slow data rates, is discussed while a practical structures of differential frequency discrimination is given.

This paper presents a method of digital frequency discrimination based on CORDIC(Coordinate Rotation Digital Computer) algorithm which is suitable to be implemented in FPGA.

Aiming at the disadvantages of analog frequency estimation in traditional receiver,this article proposes an algorithm of digital frequency discrimination based on distributed arithmetic.

This paper puts forward a digital frequency discrimination technique based on CORDIC algorithm.

Measurement method of transient rotating speed based on digital frequency discriminator;

The circuits include oscillator and digital frequency discriminator.