Bibliographic Details
| Title: |
A digital signal processing type frequency locked loop for frequency shift keying demodulation. |
| Authors: |
Obote, Shigeki, Sumi, Yasuaki, Syoubu, Kouichi, Itoh, Yoshio, Fukui, Yutaka |
| Source: |
International Journal of Electronics. Nov99, Vol. 86 Issue 11, p1377. 8p. |
| Subjects: |
Electric oscillators, Digital signal processing |
| Abstract: |
In this paper, we propose a digital signal processing type frequency locked loop (DSP-FLL) using a frequency difference detector (FDD). Since the DSP-FLL is controlled by the frequency, the pole of the voltage controlled oscillator vanishes in the baseband equivalent circuit. Therefore, the transfer function becomes first order and a ringing does not occur. Furthermore, it can be understood from the detection property of the FDD that a cycle slip does not occur and the DSP-FLL can pull in the frequency step input up to half of the sampling frequency. [ABSTRACT FROM AUTHOR] |
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| Database: |
Engineering Source |
