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JPH01139645U - - Google Patents

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Publication number
JPH01139645U
JPH01139645U JP3489788U JP3489788U JPH01139645U JP H01139645 U JPH01139645 U JP H01139645U JP 3489788 U JP3489788 U JP 3489788U JP 3489788 U JP3489788 U JP 3489788U JP H01139645 U JPH01139645 U JP H01139645U
Authority
JP
Japan
Prior art keywords
signal
spread
carrier wave
spread spectrum
signals
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
Application number
JP3489788U
Other languages
Japanese (ja)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP3489788U priority Critical patent/JPH01139645U/ja
Priority to US07/313,259 priority patent/US4977578A/en
Publication of JPH01139645U publication Critical patent/JPH01139645U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第1図A,Bは本考案のスペクトル拡散通信装
置の一実施例の夫々変調部及び復調部のブロツク
構成図、第2図A,Bは櫛歯形フイルタの周波数
特性図、第3図A〜Eは本考案装置の各構成部分
の動作説明用周波数スペクトル図、第4図はスペ
クトル拡散信号波形図、第7図は搬送波再生回路
の一構成例を示すブロツク図、第6図は従来のス
ペクトル拡散通信装置を実現する通信装置の基本
ブロツク構成図、第7図は第6図示のブロツク図
の各構成部分におけるスペクトル波形図である。 1,26……LPF(低域波器)、2〜6…
…乗算器、7〜9……加算器、10……変調部、
11……拡散符号発生回路、12……櫛歯形フイ
ルタ、13……遅延回路、14……減算器、15
〜19……BPF(帯域板器)、20……復調
部、21,22……情報信号復調回路、23……
位相同期ループ、24……1/2分周・移相回路、
25……搬送波再生回路、In〜In……入
力端子、Out〜Out……出力端子。
1A and 1B are block configuration diagrams of a modulation section and a demodulation section, respectively, of an embodiment of the spread spectrum communication device of the present invention, FIGS. 2A and 2B are frequency characteristic diagrams of a comb-shaped filter, and FIGS. E is a frequency spectrum diagram for explaining the operation of each component of the device of the present invention, FIG. 4 is a spread spectrum signal waveform diagram, FIG. 7 is a block diagram showing an example of the configuration of a carrier wave regeneration circuit, and FIG. 6 is a conventional spectrum diagram. FIG. 7 is a basic block configuration diagram of a communication device realizing a spread communication device, and FIG. 7 is a spectrum waveform diagram of each component of the block diagram shown in FIG. 1, 26...LPF (low frequency filter), 2-6...
... Multiplier, 7 to 9 ... Adder, 10 ... Modulation section,
11... Spreading code generation circuit, 12... Comb filter, 13... Delay circuit, 14... Subtractor, 15
~19... BPF (bandwidth plate device), 20... demodulation section, 21, 22... information signal demodulation circuit, 23...
Phase-locked loop, 24...1/2 frequency division/phase shift circuit,
25...Carrier regeneration circuit, In1 - In5 ...input terminals, Out1 - Out2 ...output terminals.

補正 昭63.5.30 図面の簡単な説明を次のように補正する。 明細書の第20頁第3行の「第7図」を「第5
図」と補正する。
Amendment May 30, 1983 The brief description of the drawings is amended as follows. “Figure 7” on page 20, line 3 of the specification has been replaced with “Figure 5.”
Correct it to ``Figure''.

Claims (1)

【実用新案登録請求の範囲】 変調側には、第1の搬送波を情報信号によりP
SK変調して1次変調波信号を得る手段と、該第
1の搬送波とは異なる周波数の第2の搬送波を入
力して該1次変調波信号との加算信号を得る手段
と、拡散符号信号により上記加算信号を拡散変調
して複合スペクトル拡散信号を得る手段とを備え
、 復調側には、上記複合スペクトル拡散信号を入
力して、上記1次変調波信号が拡散されている第
1のスペクトル拡散信号と上記第2の搬送波が拡
散されている第2のスペクトル拡散信号とを分離
検出する手段と、該分離検出された両信号を乗算
により逆拡散する手段と、該逆拡散によつて得ら
れた2つのPSK信号より情報信号を夫々復調す
る手段と、該復調された2つの情報信号を加算し
て出力する手段とを備えて構成したことを特徴と
するスペクトル拡散通信装置。
[Claims for Utility Model Registration] On the modulation side, the first carrier wave is
means for obtaining a primary modulated wave signal through SK modulation; means for inputting a second carrier wave having a different frequency from the first carrier wave to obtain a signal added to the primary modulated wave signal; and a spreading code signal. means for obtaining a composite spread spectrum signal by spread modulating the added signal by means of a demodulation side, the demodulation side inputting the composite spread spectrum signal to generate a first spectrum in which the primary modulated wave signal is spread. means for separately detecting a spread signal and a second spread spectrum signal in which the second carrier wave is spread; means for despreading the separated and detected signals by multiplication; and means for despreading the separated and detected signals by multiplication; What is claimed is: 1. A spread spectrum communication device comprising means for demodulating information signals from two PSK signals, and means for adding and outputting the two demodulated information signals.
JP3489788U 1988-02-19 1988-03-16 Pending JPH01139645U (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP3489788U JPH01139645U (en) 1988-03-16 1988-03-16
US07/313,259 US4977578A (en) 1988-02-19 1989-02-21 Spread spectrum communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3489788U JPH01139645U (en) 1988-03-16 1988-03-16

Publications (1)

Publication Number Publication Date
JPH01139645U true JPH01139645U (en) 1989-09-25

Family

ID=31261566

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3489788U Pending JPH01139645U (en) 1988-02-19 1988-03-16

Country Status (1)

Country Link
JP (1) JPH01139645U (en)

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