Process and device for generating pulses for the transmission of a pulsed signal of the ultra wideband type
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Abstract
Successive groups of N bits are delivered at a delivery frequency Fe greater than a predetermined frequency PRF. At least one of the successive groups includes at least one subgroup of at least one bit defining at least one digital cue of position and of shape of at least one base pulse within a window of length 1/PRF. This digital cue is converted into the base pulse, and the base pulse is filtered using a high-pass filter for providing a pulse of the ultra wideband type within the window with a temporal accuracy equal to 1/N*Fe.
2 Citations
94 Claims
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1-38. -38 (Cancelled).
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39. A process for generating pulses for transmitting a pulsed signal of an ultra wideband type, the process comprising:
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generating successive groups of N bits at a frequency Fe greater than a predetermined frequency PRF, at least one of the successive groups comprising at least one subgroup of at least one bit defining at least one digital cue of position and of shape of at least one base pulse within a window of length 1/PRF;
converting the at least one digital cue of position and of shape into the at least one base pulse; and
filtering the at least one base pulse using at least one high-pass filter for providing a filtered pulse of the ultra wideband type positioned within the window with a temporal accuracy equal to 1/N*Fe. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56)
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57. A device for generating pulses for transmitting a pulsed signal of an ultra wideband type, the device comprising:
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a processor for generating successive groups of N bits at a frequency Fe greater than a predetermined frequency PRF, at least one of the successive groups comprising at least one subgroup of at least one bit defining at least one digital cue of position and of shape of at least one base pulse within a window of length 1/PRF;
a converter for converting the at least one digital cue of position and of shape into the at least one base pulse; and
at least one high-pass filter connected to an output of said converter, and providing a filtered pulse of the ultra wideband type positioned within the window with a temporal accuracy equal to 1/N*Fe. - View Dependent Claims (58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75)
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76. A terminal of a wireless transmission system comprising:
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a pulse generator device comprising a processor for generating successive groups of N bits at a frequency Fe greater than a predetermined frequency PRF, at least one of the successive groups comprising at least one subgroup of at least one bit defining at least one digital cue of position and of shape of at least one base pulse within a window of length 1/PRF, a converter for converting the at least one digital cue of position and of shape into the at least one base pulse, and at least one high-pass filter connected to an output of said converter, and providing a filtered pulse of an ultra wideband type positioned within the window with a temporal accuracy equal to 1/N*Fe; and
a power amplifier connected to an output of said pulse generator device for amplifying the filtered pulse. - View Dependent Claims (77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94)
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Specification