JP5179656B2 - フィーチャーレスコヒーレントカオス振幅変調 - Google Patents
フィーチャーレスコヒーレントカオス振幅変調 Download PDFInfo
- Publication number
- JP5179656B2 JP5179656B2 JP2011513678A JP2011513678A JP5179656B2 JP 5179656 B2 JP5179656 B2 JP 5179656B2 JP 2011513678 A JP2011513678 A JP 2011513678A JP 2011513678 A JP2011513678 A JP 2011513678A JP 5179656 B2 JP5179656 B2 JP 5179656B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- generate
- spreading sequence
- pam
- constant power
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
- H04L27/04—Modulator circuits; Transmitter circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/001—Modulated-carrier systems using chaotic signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/0007—Code type
- H04J13/0018—Chaotic
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/10—Code generation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
- H04L25/40—Transmitting circuits; Receiving circuits
- H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
- H04L25/4917—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using multilevel codes
Landscapes
- 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
specific integrated circuit)及び/またはFPGA(field programmable gate array)を使っても同様の結果を達成できるであろう。
Claims (11)
- 一定の分散を保つことにより周期定常性のないカオス振幅変調信号を生成する方法であって、
周期的に変化する振幅を有するパルス振幅変調を含むPAM信号を生成する段階と、
前記PAM信号の強度の平方根により前記PAM信号を除算して、以下FPCPESと呼ぶ一定パワーエンベロープ信号の第1部分を生成する段階と、
1から前記PAM信号の強度を引いたものの平方根に等しい強度を有する、以下SPCPESと呼ぶ前記一定パワーエンベロープ信号の第2部分を生成する段階と、
乱数値のシーケンスとして構成された第1と第2の拡散シーケンスを生成する段階と、
前記FPCPESを前記第1の拡散シーケンスと合成して、第1の積信号を生成する段階と、
前記FPCPESを前記第2の拡散シーケンスと合成して、第2の積信号を生成する段階と、
前記第1と第2の積信号を用いて一定パワーエンベロープ信号を生成する段階とを有する、方法。 - 直交カオスシーケンスとなる前記第1と第2の拡散シーケンスをそれぞれ選択する段階をさらに有する、請求項1に記載の方法。
- 離散時間ベースバンド変調を用いて前記PAM信号を生成してAMシンボルを構成する段階をさらに有する、請求項1に記載の方法。
- 受信器に通信リンクにより前記一定パワーエンベロープ信号を送信する段階と、
受信器において、前記第1の拡散シーケンスと同一の第3の拡散シーケンスを生成する段階と、
前記一定パワーエンベロープ信号を前記第3の拡散シーケンスと相関して、前記PAM信号を回復する段階とをさらに有する、請求項1に記載の方法。 - 前記受信器において、前記第2の拡散シーケンスと同一の第4の拡散シーケンスを生成する段階と、
前記一定パワーエンベロープ信号を前記第4の拡散シーケンスと相関して、前記SPCPESを回復する段階とをさらに有する、請求項4に記載の方法。 - 一定の分散を保つことにより周期定常性のないカオス振幅変調信号を生成するシステムであって、
周期的に変化する振幅を有するパルス振幅変調を含むPAM信号を生成するように構成された第1の生成器と、
前記PAM信号の強度の平方根により前記PAM信号を除算して、以下FPCPESと呼ぶ一定パワーエンベロープ信号の第1部分を生成するように構成された第2の生成器と、
1から前記PAM信号の強度を引いたものの平方根に等しい強度を有する、以下SPCPESと呼ぶ前記一定パワーエンベロープ信号の第2部分を生成するように構成された第3の生成器と、
乱数値のシーケンスとして構成された第1と第2の拡散シーケンスを生成するように構成された第4の生成器と、
前記FPCPESを前記第1の拡散シーケンスと合成して、第1の積信号を生成する第1の合成器と、
前記FPCPESを前記第2の拡散シーケンスと合成して、第2の積信号を生成する第2の合成器と、
前記第1と第2の積信号を用いて一定パワーエンベロープ信号を生成するように構成された第5の生成器とを有する、システム。 - 前記第1と第2の拡散シーケンスのそれぞれは直交カオスシーケンスである、請求項6に記載のシステム。
- 離散時間ベースバンド変調を用いて前記PAM信号を生成してAMシンボルを構成する、請求項6に記載のシステム。
- 前記一定パワーエンベロープ信号を通信リンクにより受信器に送信するように構成された送信器をさらに有する、請求項6に記載のシステム。
- 前記受信器は、前記第1の拡散シーケンスと同一である第3の拡散シーケンスを生成し、前記一定パワーエンベロープ信号を前記第3の拡散シーケンスと相関して前記PAM信号を回復するように構成される、請求項9に記載のシステム。
- 前記受信器は、前記第2の拡散シーケンスと同一である第4の拡散シーケンスを生成し、前記一定パワーエンベロープ信号を前記第3の拡散シーケンスと相関して前記SPCPESを回復するように構成される、請求項9に記載のシステム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/137,593 US8068571B2 (en) | 2008-06-12 | 2008-06-12 | Featureless coherent chaotic amplitude modulation |
US12/137,593 | 2008-06-12 | ||
PCT/US2009/046990 WO2009152295A1 (en) | 2008-06-12 | 2009-06-11 | Featureless coherent chaotic amplitude modulation |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011524692A JP2011524692A (ja) | 2011-09-01 |
JP5179656B2 true JP5179656B2 (ja) | 2013-04-10 |
Family
ID=40902120
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2011513678A Expired - Fee Related JP5179656B2 (ja) | 2008-06-12 | 2009-06-11 | フィーチャーレスコヒーレントカオス振幅変調 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8068571B2 (ja) |
EP (1) | EP2289212B1 (ja) |
JP (1) | JP5179656B2 (ja) |
KR (1) | KR101226327B1 (ja) |
CA (1) | CA2727541C (ja) |
WO (1) | WO2009152295A1 (ja) |
Families Citing this family (87)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8312551B2 (en) | 2007-02-15 | 2012-11-13 | Harris Corporation | Low level sequence as an anti-tamper Mechanism |
US7937427B2 (en) * | 2007-04-19 | 2011-05-03 | Harris Corporation | Digital generation of a chaotic numerical sequence |
US7921145B2 (en) * | 2007-05-22 | 2011-04-05 | Harris Corporation | Extending a repetition period of a random sequence |
US8611530B2 (en) | 2007-05-22 | 2013-12-17 | Harris Corporation | Encryption via induced unweighted errors |
US7995757B2 (en) | 2007-05-31 | 2011-08-09 | Harris Corporation | Closed galois field combination |
US7974413B2 (en) | 2007-06-07 | 2011-07-05 | Harris Corporation | Spread spectrum communications system and method utilizing chaotic sequence |
US7962540B2 (en) * | 2007-06-07 | 2011-06-14 | Harris Corporation | Mixed radix number generator with chosen statistical artifacts |
US7970809B2 (en) * | 2007-06-07 | 2011-06-28 | Harris Corporation | Mixed radix conversion with a priori defined statistical artifacts |
US8005221B2 (en) * | 2007-08-01 | 2011-08-23 | Harris Corporation | Chaotic spread spectrum communications system receiver |
US7995749B2 (en) | 2007-10-30 | 2011-08-09 | Harris Corporation | Cryptographic system configured for extending a repetition period of a random sequence |
US8180055B2 (en) | 2008-02-05 | 2012-05-15 | Harris Corporation | Cryptographic system incorporating a digitally generated chaotic numerical sequence |
US8363830B2 (en) | 2008-02-07 | 2013-01-29 | Harris Corporation | Cryptographic system configured to perform a mixed radix conversion with a priori defined statistical artifacts |
US8040937B2 (en) | 2008-03-26 | 2011-10-18 | Harris Corporation | Selective noise cancellation of a spread spectrum signal |
US8139764B2 (en) | 2008-05-06 | 2012-03-20 | Harris Corporation | Closed galois field cryptographic system |
US8320557B2 (en) | 2008-05-08 | 2012-11-27 | Harris Corporation | Cryptographic system including a mixed radix number generator with chosen statistical artifacts |
US8200728B2 (en) * | 2008-05-29 | 2012-06-12 | Harris Corporation | Sine/cosine generator |
US8145692B2 (en) | 2008-05-29 | 2012-03-27 | Harris Corporation | Digital generation of an accelerated or decelerated chaotic numerical sequence |
US8064552B2 (en) | 2008-06-02 | 2011-11-22 | Harris Corporation | Adaptive correlation |
US8068571B2 (en) | 2008-06-12 | 2011-11-29 | Harris Corporation | Featureless coherent chaotic amplitude modulation |
US8325702B2 (en) * | 2008-08-29 | 2012-12-04 | Harris Corporation | Multi-tier ad-hoc network in which at least two types of non-interfering waveforms are communicated during a timeslot |
US8165065B2 (en) * | 2008-10-09 | 2012-04-24 | Harris Corporation | Ad-hoc network acquisition using chaotic sequence spread waveform |
US8406276B2 (en) | 2008-12-29 | 2013-03-26 | Harris Corporation | Communications system employing orthogonal chaotic spreading codes |
US8351484B2 (en) | 2008-12-29 | 2013-01-08 | Harris Corporation | Communications system employing chaotic spreading codes with static offsets |
US8457077B2 (en) | 2009-03-03 | 2013-06-04 | Harris Corporation | Communications system employing orthogonal chaotic spreading codes |
US8428102B2 (en) | 2009-06-08 | 2013-04-23 | Harris Corporation | Continuous time chaos dithering |
US8509284B2 (en) | 2009-06-08 | 2013-08-13 | Harris Corporation | Symbol duration dithering for secured chaotic communications |
US8428103B2 (en) | 2009-06-10 | 2013-04-23 | Harris Corporation | Discrete time chaos dithering |
US8406352B2 (en) | 2009-07-01 | 2013-03-26 | Harris Corporation | Symbol estimation for chaotic spread spectrum signal |
US8379689B2 (en) | 2009-07-01 | 2013-02-19 | Harris Corporation | Anti-jam communications having selectively variable peak-to-average power ratio including a chaotic constant amplitude zero autocorrelation waveform |
US8340295B2 (en) * | 2009-07-01 | 2012-12-25 | Harris Corporation | High-speed cryptographic system using chaotic sequences |
US8428104B2 (en) | 2009-07-01 | 2013-04-23 | Harris Corporation | Permission-based multiple access communications systems |
US8363700B2 (en) | 2009-07-01 | 2013-01-29 | Harris Corporation | Rake receiver for spread spectrum chaotic communications systems |
US8369376B2 (en) | 2009-07-01 | 2013-02-05 | Harris Corporation | Bit error rate reduction in chaotic communications |
US8385385B2 (en) | 2009-07-01 | 2013-02-26 | Harris Corporation | Permission-based secure multiple access communication systems |
US8369377B2 (en) * | 2009-07-22 | 2013-02-05 | Harris Corporation | Adaptive link communications using adaptive chaotic spread waveform |
US8848909B2 (en) | 2009-07-22 | 2014-09-30 | Harris Corporation | Permission-based TDMA chaotic communication systems |
US8345725B2 (en) | 2010-03-11 | 2013-01-01 | Harris Corporation | Hidden Markov Model detection for spread spectrum waveforms |
US8699615B2 (en) | 2010-06-01 | 2014-04-15 | Ultra Electronics Tcs Inc. | Simultaneous communications jamming and enabling on a same frequency band |
US8654819B2 (en) | 2011-06-22 | 2014-02-18 | Harris Corporation | Systems and methods for pulse rotation modulation encoding and decoding |
US8873604B2 (en) * | 2012-03-26 | 2014-10-28 | John David Terry | Method and apparatus for multiple signal aggregation and reception in digital chaos network |
US10168393B2 (en) | 2014-09-25 | 2019-01-01 | Lockheed Martin Corporation | Micro-vacancy center device |
US10088452B2 (en) | 2016-01-12 | 2018-10-02 | Lockheed Martin Corporation | Method for detecting defects in conductive materials based on differences in magnetic field characteristics measured along the conductive materials |
US9845153B2 (en) | 2015-01-28 | 2017-12-19 | Lockheed Martin Corporation | In-situ power charging |
US10338162B2 (en) | 2016-01-21 | 2019-07-02 | Lockheed Martin Corporation | AC vector magnetic anomaly detection with diamond nitrogen vacancies |
US10520558B2 (en) | 2016-01-21 | 2019-12-31 | Lockheed Martin Corporation | Diamond nitrogen vacancy sensor with nitrogen-vacancy center diamond located between dual RF sources |
US9590601B2 (en) | 2014-04-07 | 2017-03-07 | Lockheed Martin Corporation | Energy efficient controlled magnetic field generator circuit |
US9551763B1 (en) | 2016-01-21 | 2017-01-24 | Lockheed Martin Corporation | Diamond nitrogen vacancy sensor with common RF and magnetic fields generator |
US9638821B2 (en) | 2014-03-20 | 2017-05-02 | Lockheed Martin Corporation | Mapping and monitoring of hydraulic fractures using vector magnetometers |
US9829545B2 (en) | 2015-11-20 | 2017-11-28 | Lockheed Martin Corporation | Apparatus and method for hypersensitivity detection of magnetic field |
US9557391B2 (en) | 2015-01-23 | 2017-01-31 | Lockheed Martin Corporation | Apparatus and method for high sensitivity magnetometry measurement and signal processing in a magnetic detection system |
US9853837B2 (en) * | 2014-04-07 | 2017-12-26 | Lockheed Martin Corporation | High bit-rate magnetic communication |
US9910105B2 (en) | 2014-03-20 | 2018-03-06 | Lockheed Martin Corporation | DNV magnetic field detector |
US9910104B2 (en) | 2015-01-23 | 2018-03-06 | Lockheed Martin Corporation | DNV magnetic field detector |
US9817081B2 (en) | 2016-01-21 | 2017-11-14 | Lockheed Martin Corporation | Magnetometer with light pipe |
WO2016190909A2 (en) | 2015-01-28 | 2016-12-01 | Lockheed Martin Corporation | Magnetic navigation methods and systems utilizing power grid and communication network |
WO2016126436A1 (en) | 2015-02-04 | 2016-08-11 | Lockheed Martin Corporation | Apparatus and method for recovery of three dimensional magnetic field from a magnetic detection system |
GB2550809A (en) | 2015-02-04 | 2017-11-29 | Lockheed Corp | Apparatus and method for estimating absolute axes' orientations for a magnetic detection system |
US9479217B1 (en) | 2015-07-28 | 2016-10-25 | John David Terry | Method and apparatus for communicating data in a digital chaos cooperative network |
WO2017078766A1 (en) | 2015-11-04 | 2017-05-11 | Lockheed Martin Corporation | Magnetic band-pass filter |
WO2017087013A1 (en) | 2015-11-20 | 2017-05-26 | Lockheed Martin Corporation | Apparatus and method for closed loop processing for a magnetic detection system |
WO2017095454A1 (en) | 2015-12-01 | 2017-06-08 | Lockheed Martin Corporation | Communication via a magnio |
WO2017127081A1 (en) | 2016-01-21 | 2017-07-27 | Lockheed Martin Corporation | Diamond nitrogen vacancy sensor with circuitry on diamond |
WO2017127098A1 (en) | 2016-01-21 | 2017-07-27 | Lockheed Martin Corporation | Diamond nitrogen vacancy sensed ferro-fluid hydrophone |
AU2016387314A1 (en) | 2016-01-21 | 2018-09-06 | Lockheed Martin Corporation | Magnetometer with a light emitting diode |
WO2017127090A1 (en) | 2016-01-21 | 2017-07-27 | Lockheed Martin Corporation | Higher magnetic sensitivity through fluorescence manipulation by phonon spectrum control |
US10281550B2 (en) | 2016-11-14 | 2019-05-07 | Lockheed Martin Corporation | Spin relaxometry based molecular sequencing |
US20170343621A1 (en) | 2016-05-31 | 2017-11-30 | Lockheed Martin Corporation | Magneto-optical defect center magnetometer |
US10274550B2 (en) | 2017-03-24 | 2019-04-30 | Lockheed Martin Corporation | High speed sequential cancellation for pulsed mode |
US10527746B2 (en) | 2016-05-31 | 2020-01-07 | Lockheed Martin Corporation | Array of UAVS with magnetometers |
US10571530B2 (en) | 2016-05-31 | 2020-02-25 | Lockheed Martin Corporation | Buoy array of magnetometers |
US10228429B2 (en) | 2017-03-24 | 2019-03-12 | Lockheed Martin Corporation | Apparatus and method for resonance magneto-optical defect center material pulsed mode referencing |
US10330744B2 (en) | 2017-03-24 | 2019-06-25 | Lockheed Martin Corporation | Magnetometer with a waveguide |
US10317279B2 (en) | 2016-05-31 | 2019-06-11 | Lockheed Martin Corporation | Optical filtration system for diamond material with nitrogen vacancy centers |
US10145910B2 (en) | 2017-03-24 | 2018-12-04 | Lockheed Martin Corporation | Photodetector circuit saturation mitigation for magneto-optical high intensity pulses |
US10345396B2 (en) | 2016-05-31 | 2019-07-09 | Lockheed Martin Corporation | Selected volume continuous illumination magnetometer |
US10359479B2 (en) | 2017-02-20 | 2019-07-23 | Lockheed Martin Corporation | Efficient thermal drift compensation in DNV vector magnetometry |
US10338163B2 (en) | 2016-07-11 | 2019-07-02 | Lockheed Martin Corporation | Multi-frequency excitation schemes for high sensitivity magnetometry measurement with drift error compensation |
US10408890B2 (en) | 2017-03-24 | 2019-09-10 | Lockheed Martin Corporation | Pulsed RF methods for optimization of CW measurements |
US10345395B2 (en) | 2016-12-12 | 2019-07-09 | Lockheed Martin Corporation | Vector magnetometry localization of subsurface liquids |
US10371765B2 (en) | 2016-07-11 | 2019-08-06 | Lockheed Martin Corporation | Geolocation of magnetic sources using vector magnetometer sensors |
US10677953B2 (en) | 2016-05-31 | 2020-06-09 | Lockheed Martin Corporation | Magneto-optical detecting apparatus and methods |
US10371760B2 (en) | 2017-03-24 | 2019-08-06 | Lockheed Martin Corporation | Standing-wave radio frequency exciter |
US10379174B2 (en) | 2017-03-24 | 2019-08-13 | Lockheed Martin Corporation | Bias magnet array for magnetometer |
US10338164B2 (en) | 2017-03-24 | 2019-07-02 | Lockheed Martin Corporation | Vacancy center material with highly efficient RF excitation |
US10459041B2 (en) | 2017-03-24 | 2019-10-29 | Lockheed Martin Corporation | Magnetic detection system with highly integrated diamond nitrogen vacancy sensor |
US11016734B1 (en) * | 2020-01-30 | 2021-05-25 | Northrop Grumman Systems Corporation | Chip dithering using permuted randomized selection sets to enhance the LPI/LPD characteristics of a waveform |
CN113285736B (zh) * | 2021-04-26 | 2022-04-19 | 杭州电子科技大学 | 一种基于正交幅度调制的混沌扩频安全通信系统 |
Family Cites Families (116)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1501059A (fr) | 1966-09-26 | 1967-11-10 | Csf | Nouveau générateur de clé |
GB1198263A (en) * | 1967-06-06 | 1970-07-08 | Nat Res Dev | Improvements in or relating to Digital Differential Analysers |
US4095778A (en) * | 1977-07-22 | 1978-06-20 | Wing Harold R | Combination work table and vise |
US4646326A (en) | 1983-10-20 | 1987-02-24 | Motorola Inc. | QAM modulator circuit |
US4703507A (en) * | 1984-04-05 | 1987-10-27 | Holden Thomas W | Noise reduction system |
ATE116081T1 (de) * | 1989-08-24 | 1995-01-15 | Philips Nv | Verfahren und einrichtung zur decodierung von wortgeschützten codewörtern durch einen nichtbinären bch-code gegen mindestens einen symbolfehler. |
US5077793A (en) * | 1989-09-29 | 1991-12-31 | The Boeing Company | Residue number encryption and decryption system |
JPH03261254A (ja) * | 1990-03-12 | 1991-11-21 | Fujitsu Ltd | 定包絡線変調器 |
US5007087A (en) * | 1990-04-16 | 1991-04-09 | Loral Aerospace Corp. | Method and apparatus for generating secure random numbers using chaos |
US5048086A (en) * | 1990-07-16 | 1991-09-10 | Hughes Aircraft Company | Encryption system based on chaos theory |
US5319735A (en) * | 1991-12-17 | 1994-06-07 | Bolt Beranek And Newman Inc. | Embedded signalling |
US5297206A (en) * | 1992-03-19 | 1994-03-22 | Orton Glenn A | Cryptographic method for communication and electronic signatures |
US5276633A (en) * | 1992-08-14 | 1994-01-04 | Harris Corporation | Sine/cosine generator and method |
US5811998A (en) * | 1993-01-28 | 1998-09-22 | Digital Equipment Corporation | State machine phase lock loop |
US5412687A (en) * | 1993-10-15 | 1995-05-02 | Proxim Incorporated | Digital communications equipment using differential quaternary frequency shift keying |
US6614914B1 (en) * | 1995-05-08 | 2003-09-02 | Digimarc Corporation | Watermark embedder and reader |
US6014446A (en) * | 1995-02-24 | 2000-01-11 | Motorola, Inc. | Apparatus for providing improved encryption protection in a communication system |
US5598476A (en) * | 1995-04-20 | 1997-01-28 | United Technologies Automotive, Inc. | Random clock composition-based cryptographic authentication process and locking system |
US5937000A (en) * | 1995-09-06 | 1999-08-10 | Solana Technology Development Corporation | Method and apparatus for embedding auxiliary data in a primary data signal |
US5757923A (en) * | 1995-09-22 | 1998-05-26 | Ut Automotive Dearborn, Inc. | Method of generating secret identification numbers |
WO1997044935A1 (en) * | 1996-05-20 | 1997-11-27 | Philips Electronics N.V. | Cryptographic method and apparatus for non-linearly merging a data block and a key |
WO1998001964A1 (en) * | 1996-07-05 | 1998-01-15 | Clifford Harris | Modular transmission system and method |
US7190681B1 (en) * | 1996-07-10 | 2007-03-13 | Wu William W | Error coding in asynchronous transfer mode, internet and satellites |
KR100231876B1 (ko) * | 1996-09-21 | 1999-12-01 | 유기범 | 정진폭특성을 갖는 직교진폭변조방법 및 그 장치 |
US5963460A (en) | 1996-12-17 | 1999-10-05 | Metaflow Technologies, Inc. | Apparatus for computing transcendental functions quickly |
AU8261298A (en) * | 1997-06-23 | 1999-01-04 | Regents Of The University Of California, The | Chaotic digital code-division multiple access (cdma) communication systems |
US5852630A (en) * | 1997-07-17 | 1998-12-22 | Globespan Semiconductor, Inc. | Method and apparatus for a RADSL transceiver warm start activation procedure with precoding |
DE19733829C2 (de) * | 1997-08-05 | 2000-02-24 | Micronas Semiconductor Holding | Verfahren zum Verschlüsseln bzw. Entschlüsseln einer Datenfolge |
US6633226B1 (en) * | 1997-08-18 | 2003-10-14 | X-Cyte, Inc. | Frequency hopping spread spectrum passive acoustic wave identification device |
US6078611A (en) * | 1997-09-16 | 2000-06-20 | Motorola, Inc. | Rake receiver and finger management method for spread spectrum communication |
US6038317A (en) * | 1997-12-24 | 2000-03-14 | Magliveras; Spyros S. | Secret key cryptosystem and method utilizing factorizations of permutation groups of arbitrary order 2l |
US6285761B1 (en) | 1998-03-04 | 2001-09-04 | Lucent Technologies, Inc. | Method for generating pseudo-random numbers |
US6754251B1 (en) * | 1998-03-09 | 2004-06-22 | Texas Instruments Incorporated | Spread-spectrum telephony with accelerated code acquisition |
US5924980A (en) * | 1998-03-11 | 1999-07-20 | Siemens Corporate Research, Inc. | Method and apparatus for adaptively reducing the level of noise in an acquired signal |
US6141786A (en) * | 1998-06-04 | 2000-10-31 | Intenational Business Machines Corporation | Method and apparatus for performing arithmetic operations on Galois fields and their extensions |
US5900835A (en) * | 1998-07-09 | 1999-05-04 | The United States Of America As Represented By The Secretary Of The Navy | Coherent hidden markov model |
US6980656B1 (en) * | 1998-07-17 | 2005-12-27 | Science Applications International Corporation | Chaotic communication system and method using modulation of nonreactive circuit elements |
US6304556B1 (en) * | 1998-08-24 | 2001-10-16 | Cornell Research Foundation, Inc. | Routing and mobility management protocols for ad-hoc networks |
US6363104B1 (en) * | 1998-10-02 | 2002-03-26 | Ericsson Inc. | Method and apparatus for interference cancellation in a rake receiver |
US6236864B1 (en) * | 1998-11-27 | 2001-05-22 | Nortel Networks Limited | CDMA transmit peak power reduction |
US7277540B1 (en) * | 1999-01-20 | 2007-10-02 | Kabushiki Kaisha Toshiba | Arithmetic method and apparatus and crypto processing apparatus for performing multiple types of cryptography |
US6823068B1 (en) * | 1999-02-01 | 2004-11-23 | Gideon Samid | Denial cryptography based on graph theory |
US6377782B1 (en) * | 1999-03-01 | 2002-04-23 | Mediacell, Inc. | Method and apparatus for communicating between a client device and a linear broadband network |
US6304216B1 (en) * | 1999-03-30 | 2001-10-16 | Conexant Systems, Inc. | Signal detector employing correlation analysis of non-uniform and disjoint sample segments |
FI107094B (fi) * | 1999-05-10 | 2001-05-31 | Nokia Mobile Phones Ltd | Menetelmä päivittää koodigeneraattorin lineaarinen palautesiirtorekisteri |
US6570909B1 (en) * | 1999-07-09 | 2003-05-27 | Nokia Mobile Phones | Interference suppression in a CDMA receiver |
US20020099746A1 (en) * | 1999-07-26 | 2002-07-25 | Tie Teck Sing | T-sequence apparatus and method for general deterministic polynomial-time primality testing and composite factoring |
US6744893B1 (en) * | 1999-08-25 | 2004-06-01 | Southwest Research Institute | Receiver estimation engine for a chaotic system |
US7200225B1 (en) * | 1999-11-12 | 2007-04-03 | Richard Schroeppel | Elliptic curve point ambiguity resolution apparatus and method |
US7596170B2 (en) * | 2000-02-28 | 2009-09-29 | Aeroastro, Inc. | Coherent detection without transmission preamble |
US6993016B1 (en) * | 2000-11-16 | 2006-01-31 | Juniper Networks, Inc. | Methods and apparatus for transmission of analog channels over digital packet networks |
US7010559B2 (en) * | 2000-11-14 | 2006-03-07 | Parkervision, Inc. | Method and apparatus for a parallel correlator and applications thereof |
US7170997B2 (en) * | 2000-12-07 | 2007-01-30 | Cryptico A/S | Method of generating pseudo-random numbers in an electronic device, and a method of encrypting and decrypting electronic data |
JP4188571B2 (ja) * | 2001-03-30 | 2008-11-26 | 株式会社日立製作所 | 情報処理装置の演算方法および耐タンパ演算攪乱実装方式 |
GB2374258B (en) * | 2001-04-05 | 2004-03-31 | Ibm | Method and apparatus for encryption of data |
US7233970B2 (en) * | 2001-05-02 | 2007-06-19 | Cipher Corporation Limited | Computational method, system, and apparatus |
US7218734B2 (en) | 2001-05-02 | 2007-05-15 | Nciper Corporation Limited | Ring arithmetic method, system, and apparatus |
US7076065B2 (en) * | 2001-05-11 | 2006-07-11 | Lockheed Martin Corporation | Chaotic privacy system and method |
US7027598B1 (en) * | 2001-09-19 | 2006-04-11 | Cisco Technology, Inc. | Residue number system based pre-computation and dual-pass arithmetic modular operation approach to implement encryption protocols efficiently in electronic integrated circuits |
US6456648B1 (en) * | 2001-10-01 | 2002-09-24 | Interdigital Technology Corporation | Code tracking loop with automatic power normalization |
WO2003036607A1 (fr) * | 2001-10-25 | 2003-05-01 | Fujitsu Limited | Dispositif de controle d'affichage |
JP2003216037A (ja) * | 2001-11-16 | 2003-07-30 | Yazaki Corp | 暗号キー、暗号化装置、暗号化復号化装置、暗号キー管理装置及び復号化装置 |
US7269198B1 (en) * | 2001-11-19 | 2007-09-11 | Bbn Technologies Corp. | Systems and methods for beaconing in wireless networks with low probability of detection |
US6766345B2 (en) * | 2001-11-30 | 2004-07-20 | Analog Devices, Inc. | Galois field multiplier system |
JP2003218835A (ja) * | 2002-01-18 | 2003-07-31 | Mitsubishi Electric Corp | スペクトル拡散送信装置及びスペクトル拡散受信装置 |
FR2837331B1 (fr) * | 2002-03-13 | 2004-06-18 | Canon Kk | Procede d'entrelacement d'une sequence binaire |
US7010055B2 (en) * | 2002-06-27 | 2006-03-07 | Motorola, Inc. | System implementing closed loop transmit diversity and method thereof |
FR2844891A1 (fr) * | 2002-09-20 | 2004-03-26 | St Microelectronics Sa | Masquage de donnees decomposees dans un systeme de residus |
EP1420542A1 (en) * | 2002-11-12 | 2004-05-19 | STMicroelectronics S.r.l. | Method and apparatus of generating a chaos-based pseudo-random sequence |
JP2004279784A (ja) | 2003-03-17 | 2004-10-07 | Nippon Telegr & Teleph Corp <Ntt> | 有限体上演算装置、及び有限体上演算プログラム |
US7272168B2 (en) * | 2003-04-01 | 2007-09-18 | Nokia Siemens Networks Oy | Determining the correlation between received samples and available replica samples |
CN100479339C (zh) * | 2003-06-13 | 2009-04-15 | 独立行政法人科学技术振兴机构 | 扩频通信设备和扩频通信方法 |
US7328228B2 (en) * | 2003-09-02 | 2008-02-05 | Sap Aktiengesellschaft | Mapping pseudo-random numbers to predefined number ranges |
KR100543101B1 (ko) * | 2003-10-23 | 2006-01-20 | 학교법인 배재학당 | 시간지연가변 되먹임 혼돈시스템을 이용한 암호화 및 통신 장치와 그 방법 |
RU2276458C2 (ru) * | 2003-11-26 | 2006-05-10 | Институт радиотехники и электроники Российской Академии Наук | Способ прямохаотической передачи информации с заданной спектральной маской |
US7512645B2 (en) * | 2004-03-19 | 2009-03-31 | Texas Instruments Incorporated | System and method for generating pseudorandom numbers |
US8000377B2 (en) * | 2004-05-24 | 2011-08-16 | General Dynamics C4 Systems, Inc. | System and method for variable rate multiple access short message communications |
US7150399B2 (en) * | 2004-06-09 | 2006-12-19 | Ricoh Co., Ltd. | Embedding barcode data in an auxiliary field of an image file |
US7078981B2 (en) | 2004-07-27 | 2006-07-18 | Lucent Technologies Inc. | 16 QAM modulator and method of 16 QAM modulation |
US7532721B2 (en) * | 2004-10-28 | 2009-05-12 | Cisco Technology, Inc. | Implementation of a switch-box using a subfield method |
US7512647B2 (en) * | 2004-11-22 | 2009-03-31 | Analog Devices, Inc. | Condensed Galois field computing system |
US20060209932A1 (en) * | 2005-03-18 | 2006-09-21 | Qualcomm Incorporated | Channel estimation for single-carrier systems |
ITVA20050027A1 (it) * | 2005-05-03 | 2006-11-04 | St Microelectronics Srl | Metodo di generazione di successioni di numeri o bit pseudo casuali |
RU2298281C1 (ru) * | 2005-11-29 | 2007-04-27 | Самсунг Электроникс Ко., Лтд. | Устройство и способ генерации хаотического сигнала |
US7830214B2 (en) * | 2005-11-29 | 2010-11-09 | Samsung Electronics Co., Ltd. | Adjustable chaotic signal generator using pulse modulation for ultra wideband (UWB) communications and chaotic signal generating method thereof |
EP1959581B1 (en) | 2005-12-07 | 2019-04-17 | ZTE Corporation | Method and device for removing narrow band interference in spreading frequency system |
US7688878B2 (en) | 2006-03-16 | 2010-03-30 | The Boeing Company | Method and device of peak detection in preamble synchronization for direct sequence spread spectrum communication |
KR100723222B1 (ko) * | 2006-03-28 | 2007-05-29 | 삼성전기주식회사 | 펄스 세이핑 기법을 이용한 카오스 신호 송신장치 |
FR2903200B1 (fr) | 2006-06-29 | 2008-12-19 | Thales Sa | Stabilisation hybride d'images pour camera video |
US9203438B2 (en) * | 2006-07-12 | 2015-12-01 | Ternarylogic Llc | Error correction by symbol reconstruction in binary and multi-valued cyclic codes |
US7643537B1 (en) * | 2007-01-23 | 2010-01-05 | L-3 Communications, Corp. | Spread spectrum signal detection with inhibiting for known sidelobe locations |
EP2123074A2 (en) | 2007-02-15 | 2009-11-25 | Koninklijke Philips Electronics N.V. | Coordination in wireless networks having devices with different physical layer transmission schemes |
US8312551B2 (en) * | 2007-02-15 | 2012-11-13 | Harris Corporation | Low level sequence as an anti-tamper Mechanism |
US7797060B2 (en) * | 2007-02-27 | 2010-09-14 | Rockwell Automation Technologies, Inc. | Prioritization associated with controller engine instances |
US7937427B2 (en) | 2007-04-19 | 2011-05-03 | Harris Corporation | Digital generation of a chaotic numerical sequence |
US8611530B2 (en) * | 2007-05-22 | 2013-12-17 | Harris Corporation | Encryption via induced unweighted errors |
US7921145B2 (en) * | 2007-05-22 | 2011-04-05 | Harris Corporation | Extending a repetition period of a random sequence |
US7995757B2 (en) * | 2007-05-31 | 2011-08-09 | Harris Corporation | Closed galois field combination |
US7974413B2 (en) | 2007-06-07 | 2011-07-05 | Harris Corporation | Spread spectrum communications system and method utilizing chaotic sequence |
US7970809B2 (en) | 2007-06-07 | 2011-06-28 | Harris Corporation | Mixed radix conversion with a priori defined statistical artifacts |
US7962540B2 (en) | 2007-06-07 | 2011-06-14 | Harris Corporation | Mixed radix number generator with chosen statistical artifacts |
US8005221B2 (en) * | 2007-08-01 | 2011-08-23 | Harris Corporation | Chaotic spread spectrum communications system receiver |
US7995749B2 (en) * | 2007-10-30 | 2011-08-09 | Harris Corporation | Cryptographic system configured for extending a repetition period of a random sequence |
US20090122926A1 (en) * | 2007-11-13 | 2009-05-14 | Texas Instruments Incorporated | Data throughput in an interference-rich wireless environment |
US8180055B2 (en) * | 2008-02-05 | 2012-05-15 | Harris Corporation | Cryptographic system incorporating a digitally generated chaotic numerical sequence |
US8363830B2 (en) * | 2008-02-07 | 2013-01-29 | Harris Corporation | Cryptographic system configured to perform a mixed radix conversion with a priori defined statistical artifacts |
US8040937B2 (en) * | 2008-03-26 | 2011-10-18 | Harris Corporation | Selective noise cancellation of a spread spectrum signal |
US8139764B2 (en) * | 2008-05-06 | 2012-03-20 | Harris Corporation | Closed galois field cryptographic system |
US8320557B2 (en) * | 2008-05-08 | 2012-11-27 | Harris Corporation | Cryptographic system including a mixed radix number generator with chosen statistical artifacts |
US8145692B2 (en) | 2008-05-29 | 2012-03-27 | Harris Corporation | Digital generation of an accelerated or decelerated chaotic numerical sequence |
US8200728B2 (en) | 2008-05-29 | 2012-06-12 | Harris Corporation | Sine/cosine generator |
US8064552B2 (en) | 2008-06-02 | 2011-11-22 | Harris Corporation | Adaptive correlation |
US8068571B2 (en) | 2008-06-12 | 2011-11-29 | Harris Corporation | Featureless coherent chaotic amplitude modulation |
US8159938B2 (en) | 2008-06-23 | 2012-04-17 | C.H.E.S.S. Embedded Technology B.V. | Broadcast-only distributed wireless network |
US8891756B2 (en) * | 2008-10-30 | 2014-11-18 | Certicom Corp. | Collision-resistant elliptic curve hash functions |
US7974146B2 (en) * | 2008-12-19 | 2011-07-05 | Micron Technology, Inc. | Wordline temperature compensation |
-
2008
- 2008-06-12 US US12/137,593 patent/US8068571B2/en active Active
-
2009
- 2009-06-11 EP EP09763585.8A patent/EP2289212B1/en active Active
- 2009-06-11 JP JP2011513678A patent/JP5179656B2/ja not_active Expired - Fee Related
- 2009-06-11 KR KR1020117000786A patent/KR101226327B1/ko active IP Right Grant
- 2009-06-11 WO PCT/US2009/046990 patent/WO2009152295A1/en active Application Filing
- 2009-06-11 CA CA2727541A patent/CA2727541C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US20090310650A1 (en) | 2009-12-17 |
EP2289212B1 (en) | 2014-03-12 |
CA2727541C (en) | 2012-11-27 |
JP2011524692A (ja) | 2011-09-01 |
US8068571B2 (en) | 2011-11-29 |
CA2727541A1 (en) | 2009-12-17 |
KR101226327B1 (ko) | 2013-01-24 |
KR20110017446A (ko) | 2011-02-21 |
WO2009152295A1 (en) | 2009-12-17 |
EP2289212A1 (en) | 2011-03-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5179656B2 (ja) | フィーチャーレスコヒーレントカオス振幅変調 | |
US10020839B2 (en) | Reliable orthogonal spreading codes in wireless communications | |
JP5005724B2 (ja) | スプレッドスペクトラム信号の選択的ノイズキャンセレーション | |
Wren et al. | Orthogonal chaotic vector shift keying in digital communications | |
CN111711589B (zh) | 一种基于椭圆球面波信号的连续相位调制解调方法 | |
US20200366333A1 (en) | Communication system and methods using multiple-in-multiple-out (mimo) antennas within unitary braid divisional multiplexing (ubdm) | |
Cai et al. | An $ M $-ary orthogonal multilevel differential chaos shift keying system with code index modulation | |
IL151895A (en) | An efficient diffuser for spectrum-distributed communication systems | |
Gorbatyy | Investigation of the technical efficiency of state-of-the-art telecommunication systems and networks with limited bandwidth and signal power | |
EP1788766A2 (en) | Communication system, communication method, transmitter and receiver | |
KR20010034329A (ko) | 코드 분할 다중 접속 신호를 처리하기 위해 복소 의사잡음시퀀스를 생성하는 방법 및 시스템 | |
US7646801B2 (en) | Method and apparatus for spreading and modulating communication signals | |
JP5404757B2 (ja) | 符号化された変調信号を備えた搬送波抑圧タイプの変調装置 | |
CN108400865B (zh) | 一种基于dcsk混沌加密方法 | |
CA3043340C (en) | Reliable orthogonal spreading codes in wireless communications | |
WO2010070625A1 (en) | System and method for generating a signal with a random low peak to average power ratio waveform for an orthogonal frequency division multiplexing system | |
JPWO2008129609A1 (ja) | 送信装置及びssb信号形成方法 | |
JP2008283514A (ja) | 雑音成分推定装置及び受信機 | |
US20230140226A1 (en) | Communication devices and methods | |
RU2801873C1 (ru) | Способ формирования шумоподобных сигналов | |
KR100484447B1 (ko) | 피크전력대평균전력비 특성의 개선을 위한직교주파수분할다중 방식 통신시스템의 송수신 장치 및 방법 | |
KR101077288B1 (ko) | 전력선 채널에서 직교 주파수 분할 다중화 신호의 송신 장치 및 방법 | |
Sinha et al. | Performance evaluation of variable-rate polynomial phase modulation | |
Wang | Generalized DFT: Extensions in communications | |
Rao et al. | Performance Comparison of Optimised Qpsk Modulator with Msk Modulator in Vhdl |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A529 | Written submission of copy of amendment under article 34 pct |
Free format text: JAPANESE INTERMEDIATE CODE: A529 Effective date: 20110207 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20110207 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20120810 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20120828 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20121127 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20121218 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20130109 |
|
LAPS | Cancellation because of no payment of annual fees |