RU2013104821A - METHOD FOR DETECTING SIGNALS WITH LINEAR FREQUENCY MODULATION - Google Patents
METHOD FOR DETECTING SIGNALS WITH LINEAR FREQUENCY MODULATION Download PDFInfo
- Publication number
- RU2013104821A RU2013104821A RU2013104821/07A RU2013104821A RU2013104821A RU 2013104821 A RU2013104821 A RU 2013104821A RU 2013104821/07 A RU2013104821/07 A RU 2013104821/07A RU 2013104821 A RU2013104821 A RU 2013104821A RU 2013104821 A RU2013104821 A RU 2013104821A
- Authority
- RU
- Russia
- Prior art keywords
- lfm
- calculate
- value
- adder
- fft
- Prior art date
Links
Abstract
Способ обнаружения сигналов с линейной частотной модуляцией (ЛЧМ), заключающийся в том, что принимают пространственно разнесенные сигналы, излучаемые множеством радиопередатчиков, отличающийся тем, что выполняют ЛЧМ-гетеродинирование суммарного сигнала и вычисляют быстрое преобразование Фурье (БПФ), с помощью сумматора в течение сеанса обнаружения парциально накапливают отсчеты БПФ, далее среди выходов сумматора находят максимальное значение rи соответствующий ему индекс j, по заданному значению вероятности ложной тревоги вычисляют пороговое значение r, устанавливают флаги, если S=«Обнаружен», по величине индекса jопределяют значения стартового времени обнаруженного ЛЧМ-сигнала и длины его группового пути распространения.A method for detecting signals with linear frequency modulation (LFM), which consists in receiving spatially separated signals emitted by a plurality of radio transmitters, characterized in that they perform LFM heterodyning of the total signal and calculate the fast Fourier transform (FFT) using an adder during the session detections partially accumulate FFT samples, then among the outputs of the adder find the maximum value r and the corresponding index j, according to a given value of the probability of false alarm, calculate The thresholds r, set flags if S = «Detected" largest index value jopredelyayut start time detected chirped signal group and the length of its propagation path.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2013104821/07A RU2531387C2 (en) | 2013-02-05 | 2013-02-05 | Method of detecting chirp signals |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2013104821/07A RU2531387C2 (en) | 2013-02-05 | 2013-02-05 | Method of detecting chirp signals |
Publications (2)
Publication Number | Publication Date |
---|---|
RU2013104821A true RU2013104821A (en) | 2014-08-10 |
RU2531387C2 RU2531387C2 (en) | 2014-10-20 |
Family
ID=51355004
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU2013104821/07A RU2531387C2 (en) | 2013-02-05 | 2013-02-05 | Method of detecting chirp signals |
Country Status (1)
Country | Link |
---|---|
RU (1) | RU2531387C2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2578041C1 (en) * | 2014-12-10 | 2016-03-20 | Федеральное государственное казенное военное образовательное учреждение высшего профессионального образования "Военный учебно-научный центр Военно-воздушных сил "Военно-воздушная академия имени профессора Н.Е. Жуковского и Ю.А. Гагарина" (г. Воронеж) Министерства обороны Российской Федерации | Method of determining parameters of chirp signals |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5361073A (en) * | 1975-06-26 | 1994-11-01 | The United States Of America As Represented By The Secretary Of The Navy | Determination of jammer range and azimuth by use of a coherent side lobe canceller system |
SU1328829A2 (en) * | 1985-03-20 | 1987-08-07 | Военный Инженерный Краснознаменный Институт Им.А.Ф.Можайского | Device for recognizing radio signals |
US5819164A (en) * | 1996-01-29 | 1998-10-06 | The United States Of America As Represented By The Secretary Of The Army | Modulated retroreflection system for secure communication and identification |
RU2373660C2 (en) * | 2003-11-18 | 2009-11-20 | Айбиквити Диджитал Корпорейшн | Coherent tracking for frequency-modulated receiver of wpd with help of antenna system with switched diversity |
RU2309423C2 (en) * | 2005-08-29 | 2007-10-27 | Федеральное государственное унитарное предприятие "Государственное конструкторское бюро аппаратно-программных систем "Связь" (ФГУП "ГКБ "Связь") | Method of detection and direction finding of objects from radiation of their transmitters |
WO2008051204A2 (en) * | 2005-10-13 | 2008-05-02 | Bae Systems Information And Electronic Systems Integration Inc. | Surface rf emitter passive ranging accuracy confirmation algorithm |
RU2413236C1 (en) * | 2009-06-29 | 2011-02-27 | Федеральное государственное унитарное предприятие "Государственное конструкторское бюро аппаратно-программных систем "Связь" (ФГУП "ГКБ "Связь") | Searching method of composite signals |
-
2013
- 2013-02-05 RU RU2013104821/07A patent/RU2531387C2/en active
Also Published As
Publication number | Publication date |
---|---|
RU2531387C2 (en) | 2014-10-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
RU2012125393A (en) | METHOD FOR ASSESSING THE SPEED OF SOUND IN WATER IN A NETWORK OF SPEAKERS | |
EA201390209A1 (en) | SYSTEM AND METHOD FOR OBTAINING AND PROCESSING OF SEISMIC DATA ON THE FIELDS OF ELASTIC WAVES | |
EA201170912A1 (en) | METHOD FOR DETERMINING WAVE FIELD, FREE OF FALSE REFLECTED SIGNALS, EMITTED BY MARINE SEISMIC SOURCE (OPTIONS) | |
CO6620009A2 (en) | Apparatus and methods for providing information about one or more underground variables | |
AR095992A1 (en) | VIBRATORY METHOD AND SENSOR | |
GB2515920A (en) | Physical Performance Assessment | |
EP2410349A3 (en) | Method and apparatus for underwater detection and fish school detection | |
RU2013104821A (en) | METHOD FOR DETECTING SIGNALS WITH LINEAR FREQUENCY MODULATION | |
EP2405282A3 (en) | Signal evaluating device and signal evaluating method | |
RU2013125901A (en) | METHOD FOR INSTALLING CYCLE SYNCHRONIZATION | |
RU2013113030A (en) | METHOD FOR ESTIMATING SIGNAL / NOISE RELATIONSHIP BY RESULTS OF IONOSPHERE SIGNALING WITH CHF | |
AR084644A1 (en) | DETECTION OF DETERIORATION BY ELECTROMAGNETIC SIGNS AND MATHEMATICAL MODELS | |
TR201819395T4 (en) | Radio frequency digital receiver system and method. | |
RU2013101277A (en) | METHOD FOR INTEGRATED ASSESSMENT OF THE GEOMAGNETIC PSEUDO-DRILL EFFECT | |
TW201613525A (en) | Heartbeat and pulse measuring system and method thereof | |
RU2012142060A (en) | METHOD OF INCREASING THE ACCURACY OF THE DIFFERENCE OF THE DIFFERENCE OF THE MOMENTS OF RECEIVING RADIO SIGNALS BASED ON THE USE OF THE FEATURES OF THE RADIO WAVE CHANNEL CHANNEL | |
RU2013122601A (en) | METHOD FOR DETERMINING THE FREQUENCY BOUNDARIES OF THE USEFUL SIGNAL AND THE DIGITAL FREQUENCY FILTERS | |
RU2525472C1 (en) | Acoustic range-finder | |
RU2013131721A (en) | METHOD FOR FORECASTING NEUROSYPHILIS | |
RU2012134423A (en) | DEVICE FOR MEASURING SEA WAVE PARAMETERS | |
RU2012133845A (en) | LINEAR MOVEMENT METER | |
RU2011121181A (en) | METHOD FOR RECOGNIZING PULSE RADIO SIGNALS UNDER CONDITIONS OF INTERFERRING RADIO PULSE ON THE BACKGROUND OF WHITE NOISE | |
RU2014100660A (en) | METHOD FOR DETERMINING SYSTEM TRANSFORMATION LEVEL AND BIFURCTION POINTS IN RESEARCH OBJECTS | |
Gosteva et al. | Influence of demographic potential on economic growth in Russia | |
RU2013123136A (en) | METHOD OF AUTOCORRELATION RECEIVING OF THE ULTRAWIDE BAND SIGNAL |