Title:
【発明の名称】位相エラーを決定するための方法及び装置
Document Type and Number:
Japanese Patent JP2972803
Kind Code:
B2
Abstract:
A method and apparatus for determining the phase and amplitude accuracy of continuous-phase-modulated signals is described. A modulated RF signal generated by a transmitter is down converted to a relatively low intermediate frequency which is filtered and sampled by a high sampling rate analog-to-digital convertor. a digital signal processor processes the digital signals to produce a measured amplitude function and a measured phase function corresponding to the modulated RF signal. From the measured amplitude and phase functions, an ideal phase function corresponding to the modulated RF signal is calculated and synthesized. The ideal phase function is compared to the measured phase function to determine the phase function from which the modulated RF signal phase error and frequency error are computed.
Inventors:
REIMONDO EI BAAGENHEIAA
RICHAADO PII YAN
RICHAADO PII YAN
Application Number:
JP607890A
Publication Date:
November 08, 1999
Filing Date:
January 12, 1990
Export Citation:
Assignee:
HYUURETSUTO PATSUKAADO CO
International Classes:
G01R29/06; G01R23/20; G01R25/00; G01R29/26; H04L27/20; (IPC1-7): G01R29/26
Domestic Patent References:
| JP5187949A |
Attorney, Agent or Firm:
Hideo Ueno