Methods of processing a radio frequency signal, signal processing devices for carrying out the methods, radio frequency front-ends, radio receivers and gnss receivers

A signal processing device comprising:

• a local oscillator for providing a clock signal,
• a frequency-translation unit for mixing a radio frequency signal with a frequency-translation signal derived from the clock signal to provide an analog first intermediate signal, and
• a multiplexing conversion unit having a conversion mixer configured to convert the first intermediate signal to a multiplexed second intermediate signal by mixing the first intermediate signal with a conversion signal which alternately assumes a plurality of different conversion frequencies.

A radio frequency front-end for a radio receiver, with an input for a radio signal, the radio frequency front-end comprising a signal processing device configured to process a radio frequency signal derived from the radio signal, wherein the signal processing device comprises:

• a local oscillator for providing a clock signal,
• a frequency-translation unit for mixing a radio frequency signal with a frequency-translation signal derived from the clock signal to provide an analog first intermediate signal, and
• a multiplexing conversion unit having a conversion mixer configured to convert the first intermediate signal to a multiplexed second intermediate signal by mixing the first intermediate signal with a conversion signal which alternately assumes a plurality of different conversion frequencies.

A radio receiver comprising a radio frequency front-end with an input for a radio signal, the radio frequency front-end comprising a signal processing device configured to process a radio frequency signal derived from the radio signal, wherein the signal processing device comprises:

• a local oscillator for providing a clock signal,
• a frequency-translation unit for mixing a radio frequency signal with a frequency-translation signal derived from the clock signal to provide an analog first intermediate signal, and
• a multiplexing conversion unit having a conversion mixer configured to convert the first intermediate signal to a multiplexed second intermediate signal by mixing the first intermediate signal with a conversion signal which alternately assumes a plurality of different conversion frequencies, the radio receiver further comprising a baseband unit for processing signals derived from the first intermediate signal and the multiplexed second intermediate signal of the signal processing device.