OFDM Radar¶

A radar implementation estimation range-doppler maps from OFDM symbols as suggested by [1].

class OFDMRadar(device=None, waveform=None, selected_transmit_ports=None, selected_receive_ports=None, **kwargs)[source]¶

A joint communication and sensing approach estimating a range-power profile from OFDM symbols.

Refer to [1] for the original publication.

Parameters:

device (Device, optional) – Device this operator operating. Operator is considered floating by default.
waveform (CWT, optional) – Communication waveform emitted by this operator.
selected_transmit_ports (Sequence[int], optional) – Selected transmit ports of the device.
selected_receive_ports (Sequence[int], optional) – Selected receive ports of the device.

property max_range: float¶

Maximum range detectable by OFDM radar.

Defined by equation (12) in [1] as

\[d_\mathrm{max} = \frac{c_0}{2 \Delta f} \quad \text{.}\]

Returns: Maximum range in m.

property max_relative_doppler: float¶: The maximum relative doppler shift detectable by the OFDM radar in Hz.

property power: float¶: Expected power of the transmitted signal in Watts.

Note

Applies only to the signal-carrying parts of the transmission, silent parts shuch as guard intervals should not be considered.

property range_resolution: float¶

Range resolution achievable by OFDM radar.

Defined by equation (13) in [1] as

\[\Delta r = \frac{c_0}{2 B} = \frac{c_0}{2 N \Delta f} = \frac{d_{\mathrm{max}}}{N} \quad \text{.}\]

property relative_doppler_resolution: float¶: The relative doppler resolution achievable by the OFDM radar in Hz.