Wireless communication and recording

Abstract

From a first perspective, a radio device (R1) is provided, configured for wireless communication and for bistatic or multistatic radar detection, comprising a transceiver, a memory, and a processor coupled to the transceiver and memory. The transceiver and processor are designed to receive a baseband receive signal from a second radio device (R2) via the transceiver. This receive signal includes a coded message and a plurality of reference signals after transmission over a wireless channel (102). The transceiver and processor are designed to calculate channel state information using the plurality of reference signals contained in the baseband receive signal.The transceiver and processor are designed to calculate an estimate of a transmitted signal originally sent by the second radio device using the channel state information and the received signal. The transceiver and processor are designed to perform at least demodulation and channel decoding on the estimated transmitted signal to obtain an estimate of the message transmitted by the second radio device. The transceiver and processor are designed to generate a reconstruction of the transmitted signal by performing baseband signal processing and reference signal insertion on the estimated message, where the baseband signal processing and reference signal insertion correspond to the baseband signal processing and reference signal insertion performed by the second radio device.The transmitter-receiver and the processor are designed to generate sensor channel data by combining the reconstruction of the transmitted signal and the received signal.