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Небесная энциклопедия

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Применить Всего найдено 2. Отображено 2.
05-02-2015 дата публикации

GNSS RECEIVER DYNAMIC SPUR MITIGATION TECHNIQUES

Номер: US20150035701A1
Автор: AGUINAGA Ruben, PONCE Robert A., YANG Gordon G., Zhang Dongbo
Принадлежит: QUALCOMM INCORPORATED

Techniques for compensating for interference in a Global Navigation Satellite System (GNSS) receiver of a mobile device are provided. An example method according to these techniques includes determining transmission band information and channel tuning information associated with an operating configuration of a Wireless Wide Area Network (WWAN) transceiver of the mobile device, identifying interference compensation data using the transmission band information and the channel tuning information for compensating for interference caused by the WWAN transceiver at the GNSS receiver, and dynamically configuring notch filters of the GNSS receiver according to the interference compensation data. 1. A method for compensating for interference in a Global Navigation Satellite System (GNSS) receiver of a mobile device , the method comprising:determining transmission band information and channel tuning information associated with an operating configuration of a Wireless Wide Area Network (WWAN) transceiver of the mobile device;identifying notch filter configuration information for compensating for WWAN interference at the GNSS receiver using the transmission band information and the channel tuning information; anddynamically configuring notch filters of the GNSS receiver according to the notch filter configuration information.2. The method of claim 1 , further comprising:receiving interference compensation data at the mobile device.3. The method of wherein identifying the notch filter configuration information using the transmission band information and the channel tuning information for compensating for the WWAN interference at the GNSS receiver further comprises identifying the notch filter configuration information based at least in part on interference compensation data comprising a notch filter configuration information table and a notch filter configuration information index table associated with a band class in which the WWAN transceiver can be configured to operate.4. ...

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Номер записи: 1
29-07-1997 дата публикации

Data demodulator employing decision feedback for reference parameter recovery and method used therin

Номер: US5652541A
Автор: David W. Russo, Gordon G. Yang, William Chong
Принадлежит: Motorola Inc

A data demodulator operating to recover symbols from a data signal including, an estimator, coupled to the data signal, for estimating a reference parameter, and a decision function that is responsive to the reference parameter and the data signal, for selecting a symbol for a symbol time from a set of predetermined symbols where the symbol is coupled to the estimator for updating the reference parameter when the symbol is representative of the reference parameter.

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Номер записи: 2