FIELD: radio engineering, communication.
SUBSTANCE: invention relates to radio engineering and can be used in radar stations with linear co-phased arrays. Quadrature components of the signal complex envelope are formed. Each of these components is subjected to conversion into a digital form, then the digital signal is distributed between the antenna elements of a co-phased array. After that, the signal is multiplied by the corresponding first complex coefficient in each of the antenna elements and then additionally multiplied by the second complex coefficient. Then the quadrature modulation of the signal is performed. Next, the signal is converted to an analogue form, amplified and radiated by an antenna element of the co-phased array.
EFFECT: expansion of the linear co-phased array bandwidth when forming the array pattern in a digital form and radiating a linear frequency modulated signal.
7 dwg
Title | Year | Author | Number |
---|---|---|---|
ACTIVE PHASED ANTENNA ARRAY DIGITAL BEAMFORMING METHOD WHEN EMITTING AND RECEIVING CHIRP SIGNAL | 2012 |
|
RU2516683C9 |
METHOD FOR DIGITAL FORMATION OF BEAM PATTERN OF ACTIVE PHASED ANTENNA ARRAY DURING RADIATION AND RECEPTION OF LINEAR-FREQUENCY-MODULATED SIGNALS | 2020 |
|
RU2732803C1 |
METHOD FOR DIGITAL GENERATION OF ANTENNA PATTERN OF AN ACTIVE PHASED ANTENNA ARRAY WHEN EMITTING AND RECEIVING LINEAR FREQUENCY-MODULATED SIGNALS | 2021 |
|
RU2773648C1 |
DIGITAL TRANSCEIVER MODULE OF AN ACTIVE PHASED ANTENNA ARRAY | 2021 |
|
RU2781038C1 |
METHOD FOR BEAM CONTROL IN ACTIVE PHASED ARRAY ANTENNA | 2023 |
|
RU2805384C1 |
DIGITAL RECEIVING MODULE OF ACTIVE PHASED ANTENNA ARRAY | 2019 |
|
RU2722408C1 |
METHOD OF MEASURING RANGE AND RADIAL VELOCITY IN RADAR STATION WITH PROBING COMPOSITE PSEUDORANDOM CHIRP PULSE | 2014 |
|
RU2553272C1 |
APPARATUS FOR FORMING ACTIVE PHASED ANTENNA ARRAY BEAM PATTERN | 2011 |
|
RU2495449C2 |
RADAR WITH CONTINUOUS EMISSION OF BROADBAND LINEAR-FREQUENCY-MODULATED SIGNAL WITH WIDE-ANGLE ELECTRONIC SCANNING OF THE DIRECTIVITY PATTERN OF THE ANTENNA | 2021 |
|
RU2774156C1 |
METHOD OF PROVIDING CONSTANT RANGE RESOLUTION IN PULSE RADAR STATION WITH QUASIRANDOM PHASE MODULATION | 2011 |
|
RU2491572C1 |
Authors
Dates
2014-11-20—Published
2011-05-03—Filed