JPH01100545U - - Google Patents
Info
- Publication number
- JPH01100545U JPH01100545U JP19504587U JP19504587U JPH01100545U JP H01100545 U JPH01100545 U JP H01100545U JP 19504587 U JP19504587 U JP 19504587U JP 19504587 U JP19504587 U JP 19504587U JP H01100545 U JPH01100545 U JP H01100545U
- Authority
- JP
- Japan
- Prior art keywords
- spread spectrum
- demodulator
- amplifier
- output
- correlator
- 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
- 238000001228 spectrum Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 1
Description
第１図は本実施例に係るスペクトル拡散受信機
のブロツク図、第２図は復調器の構成を示すブロ
ツク図、第３図は本実施例のＡＧＣ制御ルーチン
を示す流れ図、第４図はステツプ数と利得の関係
を示す図、第５図は検出レベルと利得の関係を示
す図、第６図は従来のスペクトル拡散受信機のブ
ロツク図である。
２０……相関器、２２……復調器、２６……Ｃ
ＰＵ。
Fig. 1 is a block diagram of the spread spectrum receiver according to this embodiment, Fig. 2 is a block diagram showing the configuration of the demodulator, Fig. 3 is a flowchart showing the AGC control routine of this embodiment, and Fig. 4 is a step diagram. FIG. 5 is a diagram showing the relationship between detection level and gain. FIG. 6 is a block diagram of a conventional spread spectrum receiver. 20...correlator, 22...demodulator, 26...C
P.U.
Claims (1)
たスペクトル拡散電波を受信するスペクトル拡散
受信機であつて、前記スペクトル拡散電波を増幅
する増幅器と、前記増幅器の出力信号のＰＮ符号
の同期をとる相関器と、前記相関器の出力のベー
スバンド信号の同期をとる復調器と、前記復調器
の出力に応じて前記増幅器の利得制御を行い前記
復調器への入力信号のレベルを一定に保持する自
動利得制御回路と、を有するスペクトル拡散受信
機。 A spread spectrum receiver that receives a spread spectrum radio wave modulated by a baseband signal and a PN code, an amplifier that amplifies the spread spectrum radio wave, and a correlator that synchronizes the PN code of the output signal of the amplifier; a demodulator that synchronizes the baseband signal output from the correlator; and an automatic gain control circuit that controls the gain of the amplifier according to the output of the demodulator and maintains the level of the input signal to the demodulator constant. and a spread spectrum receiver having.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19504587U JPH01100545U (en) | 1987-12-23 | 1987-12-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19504587U JPH01100545U (en) | 1987-12-23 | 1987-12-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01100545U true JPH01100545U (en) | 1989-07-06 |
Family
ID=31485741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19504587U Pending JPH01100545U (en) | 1987-12-23 | 1987-12-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01100545U (en) |
-
1987
- 1987-12-23 JP JP19504587U patent/JPH01100545U/ja active Pending
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