Title:
信号発生装置および信号発生方法
Document Type and Number:
Japanese Patent JP6716633
Kind Code:
B2
Abstract:
To generate a desired signal without attenuating DC amplitude, even if the number of taps cannot be secured sufficiently.SOLUTION: Reverse characteristics calculation means 2 calculates reverse characteristics of a transfer function from reverse characteristics of amplitude characteristics of a signal based on the transmission standard of a digital signal. Inverse Fourier transform means 3 calculates an impulse response by performing inverse Fourier transformation of the transfer function. Impulse response extraction means 4 extracts points of a desired number of taps with reference to the peak of the impulse response. Power spectrum calculation means 5 calculates a power spectrum on the basis of the value extracted from the impulse response. Loss value correction means 6 corrects the power spectrum so that the loss of a DC insertion loss and a target frequency have equivalent deviation, by using a loss value correction curve indicating the relation of the setting loss and the actual loss of input data. Tap value correction means 7 corrects a tap value from a tap value of each tap and the total value thereof, so that there is no difference between the DC insertion loss and a setting loss value of target frequency.SELECTED DRAWING: Figure 1
Inventors:
Tatsuya Iwai
Application Number:
JP2018113710A
Publication Date:
July 01, 2020
Filing Date:
June 14, 2018
Export Citation:
Assignee:
Anritsu Co., Ltd.
International Classes:
H04B3/04; H03H17/00; H04B3/46
Domestic Patent References:
| JP2013201661A | ||||
| JP6112768A | ||||
| JP9307401A | ||||
| JP2012050069A |
Attorney, Agent or Firm:
Norimitsu Nishimura
Noriyuki Suzuki
Noriyuki Suzuki