JPS62198729U - - Google Patents
Info
- Publication number
- JPS62198729U JPS62198729U JP8650786U JP8650786U JPS62198729U JP S62198729 U JPS62198729 U JP S62198729U JP 8650786 U JP8650786 U JP 8650786U JP 8650786 U JP8650786 U JP 8650786U JP S62198729 U JPS62198729 U JP S62198729U
- Authority
- JP
- Japan
- Prior art keywords
- carrier wave
- attenuation
- amount
- circuit
- amplitude modulated
- 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
- 238000001514 detection method Methods 0.000 claims description 4
- 230000006641 stabilisation Effects 0.000 claims description 2
- 238000011105 stabilization Methods 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000001228 spectrum Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
Landscapes
- Noise Elimination (AREA)
- Circuits Of Receivers In General (AREA)
Description
第１図は、本考案の一実施例を組込んだ受信機
の検波回路前段のブロツク回路図、第２図ａは、
第１図のＩＦ回路３から出力される振幅変調波の
スペクトルを示す図、第２図ｂは第１図の受信安
定化回路４から出力される振幅変調波のスペクト
ルを示す図、第３図ａは、振幅変調波の正規の状
態でのスペクトルを示す図、同図ｂは、ビルが建
並ぶ町の中を受信点とする伝送特性、同図ｃは受
信された振幅変調波のスペクトルを示す図である
。
４０……搬送波検出回路、４１……ＰＬＬ回路
、４２……レベル制御回路、４３……混合回路。
FIG. 1 is a block circuit diagram of the front stage of the detection circuit of a receiver incorporating an embodiment of the present invention, and FIG.
FIG. 2b is a diagram showing the spectrum of the amplitude modulated wave output from the IF circuit 3 in FIG. 1, FIG. 2b is a diagram showing the spectrum of the amplitude modulated wave output from the reception stabilization circuit 4 in FIG. Figure a shows the spectrum of the amplitude modulated wave under normal conditions, Figure b shows the transmission characteristics when the reception point is in a town lined with buildings, Figure c shows the spectrum of the received amplitude modulated wave. FIG. 40...Carrier detection circuit, 41...PLL circuit, 42...Level control circuit, 43...Mixing circuit.
Claims (1)
量を検出する減衰量検出手段と、 上記搬送波の減衰量に応じて振幅変調波中の搬
送波成分のレベルを補正する搬送波レベル変換手
段とを有することを特徴とする受信安定化回路。[Scope of Claim for Utility Model Registration] Attenuation amount detection means for detecting the amount of attenuation of a carrier wave in the front stage of the detection circuit of the receiver, and a carrier wave that corrects the level of the carrier wave component in the amplitude modulated wave according to the amount of attenuation of the carrier wave. A reception stabilization circuit comprising: level conversion means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8650786U JPS62198729U (en) | 1986-06-09 | 1986-06-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8650786U JPS62198729U (en) | 1986-06-09 | 1986-06-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62198729U true JPS62198729U (en) | 1987-12-17 |
Family
ID=30942870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8650786U Pending JPS62198729U (en) | 1986-06-09 | 1986-06-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62198729U (en) |
-
1986
- 1986-06-09 JP JP8650786U patent/JPS62198729U/ja active Pending
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