JPH0434033U - - Google Patents
Info
- Publication number
- JPH0434033U JPH0434033U JP7676690U JP7676690U JPH0434033U JP H0434033 U JPH0434033 U JP H0434033U JP 7676690 U JP7676690 U JP 7676690U JP 7676690 U JP7676690 U JP 7676690U JP H0434033 U JPH0434033 U JP H0434033U
- Authority
- JP
- Japan
- Prior art keywords
- output
- frequency
- intermediate frequency
- squarer
- amplifier
- 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
- 239000000284 extract Substances 0.000 claims 1
- 230000010355 oscillation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Superheterodyne Receivers (AREA)
- Noise Elimination (AREA)
Description
図面は本考案の一実施例である受信機の概略的
な構成を示すブロツク図である。
３……周波数変換器、４……第１のＩＦ増幅器
、５……２乗器、６……第２のＩＦ増幅器、７…
…検波器、８……圧縮器。
The drawing is a block diagram showing a schematic configuration of a receiver that is an embodiment of the present invention. 3... Frequency converter, 4... First IF amplifier, 5... Squarer, 6... Second IF amplifier, 7...
...Detector, 8...Compressor.
Claims (1)
方式の受信機において、 前記変調波の周波数を局部発振周波数でヘテロ
ダイン検波して中間周波数の信号を得る周波数変
換器と、 この周波数変換器からの出力のうち、前記中間
周波数の成分のみを増幅して不要な周波数成分を
除去するための第１の中間周波数増幅器と、 この第１の中間周波数増幅器からの出力を入力
して、その入力の２乗に比例した出力を得る２乗
器と、 この２乗器からの出力のうち、前記第１の中間
周波数増幅器で増幅される周波数の２倍の周波数
の成分を増幅する第２の中間周波数増幅器と、 この第２の中間周波数増幅器の出力から原信号
の周波数成分を取り出す倹波器と、 この検波器による検波出力を1/2の振幅に圧縮
する圧縮器とを備えたことを特徴とする受信機。[Claims for Utility Model Registration] A superheterodyne receiver that receives amplitude modulated waves, etc., comprising: a frequency converter that heterodyne detects the frequency of the modulated wave using a local oscillation frequency to obtain an intermediate frequency signal; a first intermediate frequency amplifier for amplifying only the intermediate frequency component and removing unnecessary frequency components from the output from the converter; inputting the output from the first intermediate frequency amplifier; a squarer that obtains an output proportional to the square of its input; and a second squarer that amplifies a frequency component twice the frequency amplified by the first intermediate frequency amplifier, out of the output from the squarer. an intermediate frequency amplifier, a wave filter that extracts the frequency component of the original signal from the output of this second intermediate frequency amplifier, and a compressor that compresses the detected output of this wave detector to 1/2 the amplitude. A receiver featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7676690U JPH0434033U (en) | 1990-07-18 | 1990-07-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7676690U JPH0434033U (en) | 1990-07-18 | 1990-07-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0434033U true JPH0434033U (en) | 1992-03-19 |
Family
ID=31618532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7676690U Pending JPH0434033U (en) | 1990-07-18 | 1990-07-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0434033U (en) |
-
1990
- 1990-07-18 JP JP7676690U patent/JPH0434033U/ja active Pending
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