Method and apparatus for signal detection in ultra wide-band communications
AssigneeCellonics Incorporated Pte, Ltd.
InventorsKay Soon Low, Jurianto Joe
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Abstract
Methods and apparatus for detecting ultra wide-band signals using circuitry having nonlinear dynamics characteristics are disclosed. The receiver circuit can be implemented using a simple tunnel diode or using an op-amp to provide dynamic characteristics. The detector can be used in a variety of modulation schemes, including but not limited to an ON-OFF keying scheme, an M-ary pulse position modulation scheme, and a pulse width modulation scheme. The approach requires only a single frame to detect the signal.
Claims15
A method for recovering information from an ultra-wide band (UWB) signal comprising:
- receiving a transmission of the UWB signal as a received signal;
- conditioning the received signal to produce a conditioned signal;
- producing a plurality of groups of one or more pulses based the wave shaped signal, including applying the conditioned signal to a circuit characterized by a transfer function having an unstable operating region bounded by a first stable operating region and a second stable operating region;
- and
- decoding at least some of the groups of one or more pulses to produce a plurality of symbols, the information comprising the symbols.
An electronic device for detecting an ultra-wide band (UWB) signal comprising:
- a receiver circuit configured to receive a transmitted IJWB signal as a received signal, the receive#circuit including a conditioning circuit for producing a conditioned signal based on the received signal;
- a pulse generation circuit operable to produce a plurality of groups of one or more pulses based on the conditioned signal, the pulse generation circuit characterized by a transfer curve having an unstable region bounded by first and second unstable regions;
- and
- a detector circuit configured to detect some of the groups of one or more pulses and in response thereto to produce a plurality of information symbols.
An ultra-wide band (UWB) detection system comprising:
- means for receiving a transmitted UWB signal as a received signal;
- means for producing a conditioned signal based on the received signal;
- means for producing a plurality of pulses based on the conditioned signal;
- means for masking out some of the pulses to produce remaining pulses;
- and
- means for producing information symbols based on the remaining pulses.
Dependencies are inferred from the claim text.