JPH02118871U - - Google Patents

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Publication number
JPH02118871U
JPH02118871U JP2727689U JP2727689U JPH02118871U JP H02118871 U JPH02118871 U JP H02118871U JP 2727689 U JP2727689 U JP 2727689U JP 2727689 U JP2727689 U JP 2727689U JP H02118871 U JPH02118871 U JP H02118871U
Authority
JP
Japan
Prior art keywords
digital
signal
output
sin
cos
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.)
Granted
Application number
JP2727689U
Other languages
Japanese (ja)
Other versions
JPH0736286Y2 (en
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 JP1989027276U priority Critical patent/JPH0736286Y2/en
Publication of JPH02118871U publication Critical patent/JPH02118871U/ja
Application granted granted Critical
Publication of JPH0736286Y2 publication Critical patent/JPH0736286Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Gyroscopes (AREA)

Description

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

第１図は本考案に係る温度補償式デモジユレー
タの一実施例の機能ブロツク図、第２図は従来の
技術を説明するブロツク図、第３図は第２図のア
ナログスイツチＳ１，Ｓ２の出力を説明する波形
図である。 １ａ，１ｂ……モジユレーシヨン入力信号、２
ａ，２ｂ……前段フイルタ、３ａ，３ｂ……回転
基準信号、４……Ａ／Ｄ変換器、５……ｃｏｓ又
はｓｉｎ発生手段、６……デジタルシグナルプロ
セツサ、６２１，６２２……乗算手段、６３１，
６３２……デジタルフイルタ、７……制御処理装
置、９……較正データ部。 Fig. 1 is a functional block diagram of an embodiment of the temperature compensated demodulator according to the present invention, Fig. 2 is a block diagram explaining the conventional technology, and Fig. 3 shows the outputs of analog switches S1 and S2 in Fig. 2. FIG. 3 is a waveform diagram for explanation. 1a, 1b...modulation input signal, 2
a, 2b...previous stage filter, 3a, 3b...rotation reference signal, 4...A/D converter, 5...cos or sin generation means, 6...digital signal processor, 621, 622...multiplication means ,631,
632... Digital filter, 7... Control processing device, 9... Calibration data section.

Claims (1)

【実用新案登録請求の範囲】 搬送波に対して位相を変化させたモジユレーシ
ヨン入力信号及び温度情報をアナログ・デジタル
変換するＡ／Ｄ変換器と、 前記Ａ／Ｄ変換器からの温度情報によりデジタ
ル形式の較正データを得るデータ較正部と、 搬送波と同一周期の基準信号に位相同期するデ
ジタル位相同期回路と、 前記位相同期回路の出力と前記較正データ部出
力とにより温度補正されたｃｏｓ又はｓｉｎ信号
のデジタル信号を生成するｃｏｓ又はｓｉｎ発生
手段と、 前記Ａ／Ｄ変換器からのモジユレーシヨン入力
信号のデジタル変換信号とｃｏｓ又はｓｉｎ発生
手段からのデジタルｃｏｓ又はｓｉｎ信号との乗
算を行うデジタル乗算手段と、 前記デジタル乗算手段からの乗算出力の低周波成
分を通過するデジタルフイルタと、 デジタルフイルタの出力を前記データ構成部か
らの較正データにより較正する手段とからなるこ
とを特徴とする温度補償式デモジユレータ。[Claims for Utility Model Registration] An A/D converter that converts a modulation input signal whose phase has been changed with respect to a carrier wave and temperature information from analog to digital; and converting the temperature information from the A/D converter into digital format. a data calibration section that obtains calibration data; a digital phase synchronization circuit that performs phase synchronization with a reference signal having the same period as a carrier wave; and a digital cosine or sin signal that is temperature-corrected by the output of the phase synchronization circuit and the output of the calibration data section. cos or sin generation means for generating a signal; digital multiplication means for multiplying the digital conversion signal of the modulation input signal from the A/D converter by the digital cos or sin signal from the cos or sin generation means; A temperature-compensated demodulator comprising: a digital filter that passes a low frequency component of the multiplication output from the digital multiplication means; and means for calibrating the output of the digital filter using calibration data from the data configuration section.
JP1989027276U 1989-03-13 1989-03-13 Temperature compensated demodulator Expired - Lifetime JPH0736286Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989027276U JPH0736286Y2 (en) 1989-03-13 1989-03-13 Temperature compensated demodulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989027276U JPH0736286Y2 (en) 1989-03-13 1989-03-13 Temperature compensated demodulator

Publications (2)

Publication Number Publication Date
JPH02118871U true JPH02118871U (en) 1990-09-25
JPH0736286Y2 JPH0736286Y2 (en) 1995-08-16

Family

ID=31249629

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989027276U Expired - Lifetime JPH0736286Y2 (en) 1989-03-13 1989-03-13 Temperature compensated demodulator

Country Status (1)

Country Link
JP (1) JPH0736286Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08289345A (en) * 1995-04-11 1996-11-01 Nec Shizuoka Ltd Radio selective call receiver

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61273005A (en) * 1985-05-28 1986-12-03 Fujitsu Ten Ltd Amplitude modulation system receiver
JPS62198708U (en) * 1986-06-06 1987-12-17

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61273005A (en) * 1985-05-28 1986-12-03 Fujitsu Ten Ltd Amplitude modulation system receiver
JPS62198708U (en) * 1986-06-06 1987-12-17

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08289345A (en) * 1995-04-11 1996-11-01 Nec Shizuoka Ltd Radio selective call receiver

Also Published As

Publication number Publication date
JPH0736286Y2 (en) 1995-08-16

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Legal Events

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EXPY Cancellation because of completion of term