CHANNEL IMPULSE RESPONSE ESTIMATION
First Claim
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1. A method, comprising:
- controlling a transmitter to transmit an impulse signal to the channel;
detecting a received signal from the channel at a receiver; and
calculating an estimate of the impulse response of the channel by applying a calculated inverse matrix of the impulse signal to the received signal, wherein said inverse matrix is calculated prior to transmitting the impulse signal.
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Abstract
A method of estimating the impulse response of a channel is disclosed. The method includes transmitting an impulse signal to the channel, detecting a received signal from the channel at a receiver, and calculating an estimate of the impulse response of the channel by applying a calculated inverse matrix of the impulse signal to the received signal.
35 Citations
61 Claims
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1. A method, comprising:
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controlling a transmitter to transmit an impulse signal to the channel; detecting a received signal from the channel at a receiver; and calculating an estimate of the impulse response of the channel by applying a calculated inverse matrix of the impulse signal to the received signal, wherein said inverse matrix is calculated prior to transmitting the impulse signal. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 47)
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2. A method of mapping an environment, the method comprising:
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controlling a transmitter to transmit an impulse signal into the environment; detecting a return signal from the environment at a receiver; and applying a calculated inverse matrix of the impulse signal to the return signal, wherein said inverse matrix is calculated prior to transmitting the impulse signal. - View Dependent Claims (48)
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3. A method of tracking an object, the method comprising:
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controlling a transmitter to transmit an impulse signal; recording a reflection of the impulse signal from the object received at a receiver; and applying a calculated inverse matrix of the impulse signal to the reflected signal, wherein said inverse matrix is calculated prior to transmitting the impulse signal. - View Dependent Claims (49)
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24. A system, comprising:
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a transmitter; a receiver; and logic configured to calculate an inverse matrix of an impulse signal transmitted by the transmitter, and to apply the calculated inverse matrix to a signal received by the receiver, wherein said inverse matrix is calculated prior to transmission of the impulse signal. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
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25. A tracking system, comprising:
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a transmitter; a receiver; and logic configured to calculate an inverse matrix of an impulse signal transmitted by the transmitter, and to apply the calculated inverse matrix to a signal received by the receiver, wherein said inverse matrix is calculated prior to transmission of the impulse signal.
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26. A mapping system configured to map an environment, the system comprising:
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a transmitter configured to transmit an impulse signal into the environment; a receiver configured to detect a return signal from the environment; and logic configured to calculate an inverse matrix of the impulse signal, and to apply the calculated inverse matrix to the return signal, wherein said inverse matrix is calculated prior to transmission of the impulse signal.
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50. A computer readable medium comprising instructions, which, when executed, cause a computer to perform a method, the method comprising estimating the impulse response of a channel by applying a calculated inverse matrix of a matrix representing a transmitted signal to a plurality of samples of a received response signal, wherein said inverse matrix is calculated prior to transmission of the impulse signal.
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51. A computer readable medium comprising instructions, which, when executed, cause a computer to perform a method, the method comprising:
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mapping an environment by applying a calculated inverse matrix of an impulse signal transmitted into the environment to a return signal from the environment; and calculating a representation of the environment from the return signal, wherein said inverse matrix is calculated prior to transmission of the impulse signal.
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52. A computer readable medium comprising instructions, which, when executed, cause a computer to perform a method, the method comprising:
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tracking an object by applying a calculated inverse matrix of an impulse signal transmitted towards the object to a return signal reflected from the object; and calculating a location of the object from the return signal, wherein said inverse matrix is calculated prior to transmission of the impulse signal.
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53. A method comprising:
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controlling a transmitter to transmit an impulse signal to the channel; detecting a received signal from the channel at a receiver; sampling the received signal using a sliding window; and calculating an estimate of the impulse response of the channel by applying a calculated inverse matrix of the impulse signal to the received signal. - View Dependent Claims (59)
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54. A method of mapping an environment, the method comprising:
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controlling a transmitter to transmit an impulse signal into the environment; detecting a return signal from the environment at a receiver; sampling the received signal using a sliding window; and applying a calculated inverse matrix of the impulse signal to the return signal. - View Dependent Claims (60)
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55. A method of tracking an object, the method comprising:
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controlling a transmitter to transmit an impulse signal; sampling a reflection of the impulse signal from the object received at a receiver, using a sliding window; and applying a calculated inverse matrix of the impulse signal to the reflected signal. - View Dependent Claims (61)
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56. A system comprising:
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a transmitter; a receiver; a sampler configured to sample a signal received by the receiver using a sliding window; and logic configured to apply a calculated inverse matrix of an impulse signal transmitted by the transmitter to the received signal.
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57. A tracking system comprising:
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a transmitter; a receiver; a sampler configured to sample a signal received by the receiver using a sliding window; and logic configured to apply a calculated inverse matrix of an impulse signal transmitted by the transmitter to the received signal.
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58. A mapping system configured to map an environment, the system comprising:
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a transmitter configured to transmit an impulse signal into the environment; a receiver configured to detect a return signal from the environment; a sampler configured to sample the return signal using a sliding window; and logic configured to apply a calculated inverse matrix of the impulse signal to the return signal.
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Specification