JP5988863B2 - 受信装置及び復調方法 - Google Patents
受信装置及び復調方法 Download PDFInfo
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- JP5988863B2 JP5988863B2 JP2012284355A JP2012284355A JP5988863B2 JP 5988863 B2 JP5988863 B2 JP 5988863B2 JP 2012284355 A JP2012284355 A JP 2012284355A JP 2012284355 A JP2012284355 A JP 2012284355A JP 5988863 B2 JP5988863 B2 JP 5988863B2
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- signal
- frequency component
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
- H04L27/14—Demodulator circuits; Receiver circuits
- H04L27/144—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
- H04L27/14—Demodulator circuits; Receiver circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
- H04L27/16—Frequency regulation arrangements
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Description
図1は、本発明の一実施の形態に係る受信装置の構成を示すブロック図である。図1に示すように、受信装置100は、アンテナ101と、混合器102と、周波数シンセサイザ103と、ADC(アナログ-デジタル変換器)104と、復調処理ブロック200と、から主に構成されている。復調処理ブロック200は、周波数成分検出器105と、演算範囲制御部106と、復調部107と、を備えている。
101 アンテナ
102 混合器
103 周波数シンセサイザ
104 ADC
105 周波数成分検出器
106 演算範囲制御部
107 復調部
200 復調処理ブロック
121 Mark/Space周波数検出器
122 演算範囲設定部
131 ピーク検出器
132 AFC
133 ビット判定器
Claims (4)
- 周波数シフトキーイング(FSK)変調された信号を受信して復調する受信装置であって、
FSK変調されたデジタル信号の周波数成分を検出する周波数成分検出器と、
前記周波数成分検出器の出力信号に基づいて検出されたMark周波数及びSpace周波数に基づいて、前記周波数成分検出器の演算に用いる周波数の範囲を制御する演算範囲制御部と、
を具備する受信装置。 - 前記演算範囲制御部は、
正の周波数成分の中で受信レベルのピーク値に対応する周波数を前記Mark周波数として検出し、負の周波数成分の中で受信レベルのピーク値に対応する周波数を前記Space周波数として検出する、
請求項1に記載の受信装置。 - 前記演算範囲制御部は、
前記Mark周波数及び前記Space周波数に基づいて変調モードを推定する、
請求項1または2に記載の受信装置。 - 周波数シフトキーイング(FSK)変調された信号の復調方法であって、
FSK変調されたデジタル信号の周波数成分を検出するステップと、
前記周波数成分検出器の出力信号に基づいて検出されたMark周波数及びSpace周波数に基づいて、前記周波数成分を検出する演算に用いる周波数の範囲を制御するステップと、
を具備する復調方法。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012284355A JP5988863B2 (ja) | 2012-12-27 | 2012-12-27 | 受信装置及び復調方法 |
US14/649,403 US10142143B2 (en) | 2012-12-27 | 2013-12-20 | Receiving apparatus and demodulation method |
PCT/JP2013/007497 WO2014103267A1 (ja) | 2012-12-27 | 2013-12-20 | 受信装置及び復調方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012284355A JP5988863B2 (ja) | 2012-12-27 | 2012-12-27 | 受信装置及び復調方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2014127910A JP2014127910A (ja) | 2014-07-07 |
JP5988863B2 true JP5988863B2 (ja) | 2016-09-07 |
Family
ID=51020387
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012284355A Expired - Fee Related JP5988863B2 (ja) | 2012-12-27 | 2012-12-27 | 受信装置及び復調方法 |
Country Status (3)
Country | Link |
---|---|
US (1) | US10142143B2 (ja) |
JP (1) | JP5988863B2 (ja) |
WO (1) | WO2014103267A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5988863B2 (ja) * | 2012-12-27 | 2016-09-07 | パナソニック株式会社 | 受信装置及び復調方法 |
JP6530986B2 (ja) | 2014-12-22 | 2019-06-12 | パナソニック株式会社 | 無線受信装置、電子機器、及び無線受信方法 |
US11606798B2 (en) * | 2020-03-03 | 2023-03-14 | Atc Technologies, Llc | Signal collision avoidance between terrestrial radio towers and airborne platforms |
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JP6198631B2 (ja) * | 2014-02-25 | 2017-09-20 | パナソニック株式会社 | 受信装置及び復調方法 |
JP6530986B2 (ja) * | 2014-12-22 | 2019-06-12 | パナソニック株式会社 | 無線受信装置、電子機器、及び無線受信方法 |
-
2012
- 2012-12-27 JP JP2012284355A patent/JP5988863B2/ja not_active Expired - Fee Related
-
2013
- 2013-12-20 WO PCT/JP2013/007497 patent/WO2014103267A1/ja active Application Filing
- 2013-12-20 US US14/649,403 patent/US10142143B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
WO2014103267A1 (ja) | 2014-07-03 |
US20160134451A1 (en) | 2016-05-12 |
JP2014127910A (ja) | 2014-07-07 |
US10142143B2 (en) | 2018-11-27 |
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