A digital signal processing type frequency locked loop for frequency shift keying demodulation

被引：1
|
作者：
Obote, S [1 ]
Sumi, Y
Syoubu, K
Itoh, Y
Fukui, Y
机构：
[1] Tottori Univ, Fac Engn, Tottori 6808552, Japan
[2] Tottori SANYO Elect Co Ltd, Tottori 6808634, Japan
来源：
INTERNATIONAL JOURNAL OF ELECTRONICS | 1999年 / 86卷 / 11期
关键词：
D O I：
10.1080/002072199132662
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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.
引用
收藏
页码：1377 / 1384
页数：8
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