COMMUNICATION AND REMOTE SENSING APPLICATIONS WITH SIGNALS CODED WITH PERFECT CODES
First Claim
1. An electronic device for outputting a code, characterized in that the electronic device is configured to output a finite sequence of elements, which finite sequence of elements constitutes a code that with a predefined numerical accuracy is equal to an infinite sequence of elements that has the characteristic that the modulus of the Fourier transform of said infinite sequence of elements is equal to 1.
2 Assignments
0 Petitions
Accused Products
Abstract
A code for signal transmission is a so-called perfect code with zero sidelobes in its autocorrelation function if and only if the modulus of the Fourier transform of said code is equal to 1. A communication device equipped for communications with perfect codes is one, a code source of which outputs a perfect code. A remote sensing device equipped for remote sensing with perfect codes is one, a code source of which outputs a perfect code.
7 Citations
18 Claims
- 1. An electronic device for outputting a code, characterized in that the electronic device is configured to output a finite sequence of elements, which finite sequence of elements constitutes a code that with a predefined numerical accuracy is equal to an infinite sequence of elements that has the characteristic that the modulus of the Fourier transform of said infinite sequence of elements is equal to 1.
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5. A communication device adapted to implement coded communications with at least one other communication device, characterized in that it comprises:
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at least one of a transmitter and a receiver configured to use a code to implement coded communications, and a code source configured to provide said at least one of a transmitter and a receiver with a finite sequence of elements, which finite sequence of elements constitutes a code that with a predefined numerical accuracy is equal to an infinite sequence of elements that has the characteristic that the modulus of the Fourier transform of said infinite sequence of elements is equal to 1. - View Dependent Claims (6)
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7. A remote sensing device adapted to transmit a coded transmission signal towards a target, characterized in that it comprises:
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a transmitter, and a transmission signal source configured to provide said transmitter with a finite sequence of elements, which finite sequence of elements constitutes a code that with a predefined numerical accuracy is equal to an infinite sequence of elements that has the characteristic that the modulus of the Fourier transform of said infinite sequence of elements is equal to 1; wherein said transmitter is configured to use said code to transmit a coded trans-mission signal. - View Dependent Claims (8)
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- 9. A method for producing a code, characterized in that the method comprises producing a finite sequence of elements, which finite sequence of elements constitutes a code that with a predefined numerical accuracy is equal to an infinite sequence of elements that has the characteristic that the modulus of the Fourier transform of said infinite sequence of elements is equal to 1.
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12. A method for transmitting an encoded message, characterized in that it comprises:
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representing a message to be transmitted in the form of a sequence of symbols, encoding said sequence of symbols by convolving it with a finite sequence of elements, which finite sequence of elements constitutes a code that with a predefined numerical accuracy is equal to an infinite sequence of elements that has the characteristic that the modulus of the Fourier transform of said infinite sequence of elements is equal to 1, to produce an encoded message, and transmitting said encoded message. - View Dependent Claims (13)
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14. A method for receiving and decoding an encoded message, characterized in that it comprises:
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receiving an encoded message in the form of a sequence of encoded symbols, decoding said sequence of encoded symbols by convolving it with a finite sequence of elements, which finite sequence of elements constitutes a code that with a predefined numerical accuracy is equal to an infinite sequence of elements that has the characteristic that the modulus of the Fourier transform of said infinite sequence of elements is equal to 1. - View Dependent Claims (15)
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- 16. A method for remotely sensing a target, characterized in that it comprises transmitting a coded transmission signal towards a target, which coded transmission signal comprises a finite sequence of elements, which finite sequence of elements constitutes a code that with a predefined numerical accuracy is equal to an infinite sequence of elements that has the characteristic that the modulus of the Fourier transform of said infinite sequence of elements is equal to 1.
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18. A computer program product for producing a code, characterized in that the computer program product comprises machine-readable instructions which, when executed on a computer, cause the computer to produce a finite sequence of elements, which finite sequence of elements constitutes a code that with a predefined numerical accuracy is equal to an infinite sequence of elements that has the characteristic that the modulus of the Fourier transform of said infinite sequence of elements is equal to 1.
Specification