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Detail
Registered APPARATUS AND METHOD FOR PERFORMING AUTOMATIC FREQUENCY CONTROL
- Inventors
- Dukhyun You, Kim Il Gyu, Chung Hyun Kyu
- Application No.
- 13733463 (2013.01.03)
- Publication No.
- 20130177111 (2013.07.11)
- Registration No.
- 9049086 (2015.06.02)
- Country
- UNITED STATES
- Project Code
- 11VI1500, (11VI1500->11MI3100) IT 융복합 기기를 위한 4세대 멀티모드 상용 모뎀 개발, Kim Il Gyu
- Abstract
- Disclosed are a device and method for automatically controlling frequency. The automatic frequency control device includes a frequency error detection unit configured to obtain a frequency error detection value of a received carrier, a frequency error prediction unit configured to calculate a first frequency error prediction value on the basis of the frequency error detection value when the frequency error detection value satisfies a preset first criterion, and a frequency error compensation unit configured to calculate a second frequency error prediction value by correcting the first frequency error prediction value, and compensate for a frequency of the carrier on the basis of the second frequency error prediction value when a frequency change rate of the received carrier satisfies a preset second criterion. Therefore, overshoot and undershoot effects are minimized, and thus frequency control may be correctly performed.
- KSP Keywords
- Automatic frequency control, Change rate, Control device, Error Compensation, Error detection, Frequency change, Frequency change rate, Frequency control, compensation unit, error prediction, frequency error(FE), overshoot and undershoot, prediction unit
- Family
| Status | Patent | Country | KIPRIS |
|---|---|---|---|
| Registered | APPARATUS AND METHOD FOR PERFORMING AUTOMATIC FREQUENCY CONTROL | KOREA | KIPRIS |