Patent ID: 11881967
Assignee: TECHNISCHE UNIVERSITAET ILMENAU
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 17:
18. A method for measuring the impulse response of a linear system comprising:
generating a transmit signal on the basis of a first sequence, and sending the transmit signal onto the linear system;
acquiring a receive signal as a feedback from the linear system;
mixing the receive signal with another signal based on a second sequence;
analog-to-digitally, ADC, convert an integrated version of the mixed signal;
estimating the impulse response on the basis of a plurality of digital acquired signals,
wherein the first sequence and the second sequence are synchronized with each other and/or are generated from a common system clock signal and/or are synchronized with a common system clock signal,
wherein the method performs a clock division by dividing the common system clock signal by a first divider factor parameter to acquire a sampling clock signal to control the ADC conversion and/or to define the period of time of the integration of the modified receive signal,
wherein the first sequence is associated with a first linear signal model, and the second sequence is associated with a second linear model, so as to acquire the estimate of the impulse response on the basis of a relationship between the plurality of sample values, the first linear signal model, and the second linear model,
wherein the first linear model is described by a first sparse representation operator and the second linear model is described by a second sparse representation operator,
wherein the first sparse representation operators is acquired through a factorization which involves at least one Hadamard matrix or Hadamard transform.