Random jitter beamforming method and transmitter and receiver using the same
First Claim
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1. A random jitter beamforming method, comprising:
- dividing a series of binary sequences to generate a plurality of bit groups;
designating a beam pattern, corresponding to each of the bit groups, from a set of two or more beam patterns having the same gain and phase in a target direction; and
forming a beam with the corresponding beam pattern, for each of the bit groups.
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Abstract
A random jitter beamforming method for reducing the influence of a side lobe to decrease a beam width, and a transmitter and a receiver using the same are provided. The random jitter beamforming method includes dividing a series of binary sequences to generate a plurality of bit groups, designating a beam pattern, corresponding to each of the bit groups, from a set of two or more beam patterns having the same gain and phase in a target direction, and forming a beam with the corresponding beam pattern, for each of the bit groups.
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Citations
13 Claims
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1. A random jitter beamforming method, comprising:
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dividing a series of binary sequences to generate a plurality of bit groups; designating a beam pattern, corresponding to each of the bit groups, from a set of two or more beam patterns having the same gain and phase in a target direction; and forming a beam with the corresponding beam pattern, for each of the bit groups. - View Dependent Claims (2, 3, 4)
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5. A transmitter using random jitter beamforming, comprising:
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a bit group generation unit configured to divide a series of transmission binary sequences to generate a plurality of bit groups; a beam control unit configured to control a set of two or more beam patterns having the same gain and phase in a target direction; a beamforming unit configured to designate a corresponding beam pattern among the two or more beam patterns to each of the bit groups; a D/A conversion unit configured to convert each of the bit groups, of which the corresponding beam pattern has been designated, into an analog signal; and a transmission unit configured to transmit the analog signal. - View Dependent Claims (6, 7)
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8. A receiver using random jitter beamforming, comprising:
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a reception unit configured to receive an RF signal through an antenna array, and convert the RF signal into a continuous time baseband signal, wherein; an A/D conversion unit configured to convert the continuous time baseband signal into discrete time domain signals equal to the number of antennas comprised in the antenna array; a beam control unit configured to define and store an array coefficient vector for a beam pattern, wherein the array coefficient vector is based on dividing a binary sequence to generate a bit group; and a beamforming unit configured to perform beamforming on the discrete time domain signal to generate a random-jitter-beamformed signal. - View Dependent Claims (9)
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- 10. A receiver using random jitter beamforming, comprising a cross-correlation coefficient calculation unit configured to calculate a cross-correlation coefficient with a binary sequence vector and a reception signal vector that are transmitted using random jitter beamforming, wherein the binary sequence vector is based on a binary sequence divided into a of bit group.
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12. A receiving method using random jitter beamforming, the receiving method comprising:
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receiving an RF signal through an antenna array, and converting the RF signal into a continuous time baseband signal; converting the continuous time baseband signal into discrete time domain signals equal to the number of antennas comprised in the antenna array; defining and storing an array coefficient vector for a beam pattern, wherein the array coefficient vector is based on dividing a binary sequence to generate a bit group; and performing beamforming on the discrete time domain signal to generate a random-jitter-beamformed signal. - View Dependent Claims (13)
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Specification