Patent ID: 11942987
Assignee: SHAN DONG SITRUS TECHNOLOGY CO., LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 6:
7. A system for measuring an optoelectronic device or a channel, comprising a processor and a memory, the memory communicatively coupled to the processor and comprising computer-readable instructions that upon execution by the processor cause the processor to:
control a periodic excitation source by a correlation analysis software C to transmit a periodic excitation signal A, wherein the periodic excitation signal comprises repeated sequences of code pattern and satisfies characteristics of randomness and correlation;
sample an output signal A+NA at an output point of the periodic excitation signal A using a sampling device AA, and averaging the output signal A+NA over one or more periods to filter noise;
input the sampled output signal A+NA as an input to a device or a channel H to be measured;
sample an output signal B+NB at an output point of the device or the channel H to be measured using a sampling device BB, and averaging the output signal B+NB over one or more periods to filter noise; and
transmit sampling results from the sampling device AA and the sampling device BB to the correlation analysis software C and calculate a transfer function of the device or the channel H to be measured through correlation calculation, wherein the transfer function of the device or the channel H is calculated based on H(t)=B(t)*Dt(i)/kM, H(t) represents a convolution matrix of the transfer function of the device or the channel, B(t) represents the sampled output signal of the device or the channel to be measured, Dt(i) represents an impulse sequence of code pattern in time domain, k is determined by a number of sampled points per baud, and wherein M represents a length of the code pattern of the periodic excitation signal.