JPS58127737U - Frequency tracking device - Google Patents
Frequency tracking deviceInfo
- Publication number
- JPS58127737U JPS58127737U JP2530182U JP2530182U JPS58127737U JP S58127737 U JPS58127737 U JP S58127737U JP 2530182 U JP2530182 U JP 2530182U JP 2530182 U JP2530182 U JP 2530182U JP S58127737 U JPS58127737 U JP S58127737U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- frequency
- circuit
- frequency signal
- input
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来装置を説明するための図、第２図はドプラ
ーソナーにおける受波信号の一列を示し、第３図はこの
考案の実施例を示す。FIG. 1 is a diagram for explaining a conventional device, FIG. 2 shows a line of received signals in a Doppler sonar, and FIG. 3 shows an embodiment of this invention.
Claims (1)
周波信号の周波数を一致させる装置において、 上記入力周波信号と連続周波信号との位相比較を行ない
位相差に応じた出力電圧を送出する位相比較回路と、 該位相比較回路の出力電圧を断続的にかつ上記連続周波
信号の位相に同期して送出するアナログスイッチと、 該アナログスイッチから送出される上記比較回路の出力
電圧を積分して直流電圧を送出し上記入力周波信号の周
波数変化に応じて上記位相比較出力が変化するとき該周
波数変化に追従して該積分電圧が極めて早く変化する時
定数を有する第１の積分回路と、 該第１の積分回路と同様に上記比較回路の出力電圧を積
分して直流電圧を送出し該第１の積分回路に比して比較
的大きい時定数を有する第２の積分回路と、 上記第１積分回路と第２積分回路の各々が送出する直流
電圧を互いに合成する合成回路と、該合成電圧に基づい
てその発振周波数が制御され該発振周波数が上記連続周
波信号として用いられる電圧制御発振器とを具備してな
る周波数追尾装置。[Claims for Utility Model Registration] In a device that matches the frequency of a continuous frequency signal prepared in advance with an input signal input from the outside, the device performs a phase comparison between the input frequency signal and the continuous frequency signal and outputs an output according to the phase difference. a phase comparison circuit that sends out voltage; an analog switch that sends out the output voltage of the phase comparison circuit intermittently and in synchronization with the phase of the continuous frequency signal; and an output voltage of the comparison circuit that is sent out from the analog switch. A first integral having a time constant that causes the integrated voltage to change extremely quickly in accordance with the frequency change when the phase comparison output changes according to the frequency change of the input frequency signal. a second integrating circuit that integrates the output voltage of the comparator circuit to send out a DC voltage and has a relatively large time constant compared to the first integrating circuit; , a combining circuit that combines the DC voltages sent out by each of the first integrating circuit and the second integrating circuit, and a voltage whose oscillation frequency is controlled based on the combined voltage and whose oscillation frequency is used as the continuous frequency signal. A frequency tracking device comprising a controlled oscillator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2530182U JPS58127737U (en) | 1982-02-23 | 1982-02-23 | Frequency tracking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2530182U JPS58127737U (en) | 1982-02-23 | 1982-02-23 | Frequency tracking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58127737U true JPS58127737U (en) | 1983-08-30 |
| JPH0427221Y2 JPH0427221Y2 (en) | 1992-06-30 |
Family
ID=30037274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2530182U Granted JPS58127737U (en) | 1982-02-23 | 1982-02-23 | Frequency tracking device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58127737U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4931822A (en) * | 1972-07-28 | 1974-03-22 |
-
1982
- 1982-02-23 JP JP2530182U patent/JPS58127737U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4931822A (en) * | 1972-07-28 | 1974-03-22 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0427221Y2 (en) | 1992-06-30 |
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