Method and system to measure and compensate undue dco frequency peaks at gfsk ramp down

• Main Authors: B. THEHOVA, G LIPUMA
• Format: Patent
• Language: Chinese; English
• Published: 24.07.2013
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

One embodiment of the invention relates to a communication system having an amplitude modulation path, a frequency deviation component, a characterization component, a peak cancellation component and a compensation unit. The amplitude modulation path is configured to provide an amplitude modulation signal. The frequency deviation component is configured to generate a frequency deviation signal. The characterization component is configured to generate characterization coefficients according to the amplitude modulation signal and the frequency deviation signal. The peak cancellation component is configured to identify peaks according to the amplitude modulation signal and generate a peak cancellation signal to compensate for peak distortion by the identified peaks. The compensation unit utilizes the characterization coefficients, the amplitude modulation signal and the peak cancellation signal to generate a correction signal that compensates for peak distortions and amplitude modulation to frequency modulation