JPS60172444U - modulator - Google Patents
modulatorInfo
- Publication number
- JPS60172444U JPS60172444U JP5958884U JP5958884U JPS60172444U JP S60172444 U JPS60172444 U JP S60172444U JP 5958884 U JP5958884 U JP 5958884U JP 5958884 U JP5958884 U JP 5958884U JP S60172444 U JPS60172444 U JP S60172444U
- Authority
- JP
- Japan
- Prior art keywords
- modulator
- output
- waveform
- waveform generator
- envelope
- 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.)
- Pending
Links
Landscapes
- Transmitters (AREA)
- Amplitude Modulation (AREA)
- Radar Systems Or Details Thereof (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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図はトランジスタ変調器の非直線性を示す図、第２
図は従来の変調装置における搬送波信号レベルと変調信
号の関係および変調出力信号を示す波形図、第３図は本
考案の一実施例を示すブロック図、第４図は上記実施例
の各部信号を示す波形図である。
図において、１：スイッチ変調回路、２：第１の変調器
、３：第１の波形発生器、４：第２の変調器、５：送信
電力増幅器、６：包路線検出器、７：第２の波形発生器
、８：差動増幅器。Figure 1 shows the nonlinearity of a transistor modulator, Figure 2 shows the nonlinearity of a transistor modulator.
The figure is a waveform diagram showing the relationship between the carrier wave signal level and the modulation signal and the modulated output signal in a conventional modulation device, FIG. 3 is a block diagram showing an embodiment of the present invention, and FIG. 4 shows various signals of the above embodiment. FIG. In the figure, 1: switch modulation circuit, 2: first modulator, 3: first waveform generator, 4: second modulator, 5: transmission power amplifier, 6: envelope line detector, 7: first waveform generator. 2: waveform generator, 8: differential amplifier.
Claims (1)
装置において、両側部がなだらかにレベル低下する波形
を発生する第１の波形発生器と、所定形状の包絡線波形
を発生する第２の波形発生器と、前記搬送波信号を前記
第１の波形発生器の出力で変調する第１の変調器と、該
第１の変調器の変調出力信号を前記第２の波形発生器の
出力で変調する第２の変調器と、該第２の変調器の変調
。 出力信号を増幅する送信電力増幅器と、該送信電力増幅
器の出力信号の包路線を検出する包路線検出器と、該包
路線検出器の出力波形と前記第２の波形発生器の出力波
形との差がＯになるように前記第２の変調器の変調利得
を制御する誤差増幅器とを備えたことを特徴とする変調
装置。[Claims for Utility Model Registration] A modulation device that modulates and outputs an input carrier signal into an envelope having a predetermined shape, comprising: a first waveform generator that generates a waveform whose level drops gently on both sides; and an envelope having a predetermined shape. a second waveform generator that generates a waveform; a first modulator that modulates the carrier signal with the output of the first waveform generator; and a first modulator that modulates the carrier signal with the output of the first waveform generator; a second modulator that modulates the output of the waveform generator; and modulation of the second modulator. a transmission power amplifier that amplifies an output signal; an envelope detector that detects an envelope of the output signal of the transmission power amplifier; and an output waveform of the envelope detector and an output waveform of the second waveform generator. and an error amplifier that controls the modulation gain of the second modulator so that the difference becomes O.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5958884U JPS60172444U (en) | 1984-04-23 | 1984-04-23 | modulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5958884U JPS60172444U (en) | 1984-04-23 | 1984-04-23 | modulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60172444U true JPS60172444U (en) | 1985-11-15 |
Family
ID=30586152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5958884U Pending JPS60172444U (en) | 1984-04-23 | 1984-04-23 | modulator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60172444U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0472588A (en) * | 1990-07-13 | 1992-03-06 | Yuseisho Tsushin Sogo Kenkyusho | Radar transmit modulation signal generating method and its radar device |
| JP2003143023A (en) * | 2001-11-05 | 2003-05-16 | Nec Corp | Transmitter |
-
1984
- 1984-04-23 JP JP5958884U patent/JPS60172444U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0472588A (en) * | 1990-07-13 | 1992-03-06 | Yuseisho Tsushin Sogo Kenkyusho | Radar transmit modulation signal generating method and its radar device |
| JP2003143023A (en) * | 2001-11-05 | 2003-05-16 | Nec Corp | Transmitter |
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