Device and method for processing radar signals

1. A device for accessing radar data, comprising:

a memory, which is arranged to store the radar data as a radar data cube, wherein the radar data was received by a receiver via a transmitted signal; and

an accessor comprising a DMA engine, wherein the accessor is arranged:

to read access the radar data stored in the memory via the DMA engine,

to filter, by a filter, the accessed radar data in accordance with a predefined condition which is based on a range or a Doppler direction, wherein the filter is or corresponds to a mask that comprises information whether radar data accessed via the DMA engine is forwarded or not, and

to forward the filtered radar data,

wherein a representation of the mask is forwarded.

2. The device according to claim 1 , wherein each radar data comprises a bin, which may be selected or rejected by the filtering of the accessor.

3. The device according to claim 1 , wherein the accessor is arranged to conduct error detection and/or error correction directed to addresses of the filtered radar data or values of the filtered radar data.

4. The device according to claim 1 , wherein the mask is updated after at least one read access to the memory.

5. The device according to claim 1 , wherein filtered radar data is forwarded to an external apparatus.

6. The device according to claim 5 , wherein the external unit is a centralized apparatus.

7. The device according to claim 1 , wherein filtered radar data is forwarded to an external apparatus via a buffer.

8. The device according to claim 7 , wherein the buffer is part of the device or part of an external apparatus.

9. The device according to claim 8 , wherein the external apparatus is a central processing component or wherein the external apparatus is connectable to the central processing component.

10. The device according to claim 7 , wherein writing the buffer includes padding the buffer with at least one predefined value.

11. The device according to claim 1 , further comprising:

a radar transceiver configured to emit radar signals and to sample reflected radar signals and write the sampled radar signals into the memory.

12. A system comprising at least one device according to claim 1 and a central processing component, wherein the central processing component is arranged to conduct a predefined operation based on the filtered radar data supplied by the at least one device.

13. A method for accessing radar data of a radar data cube, the method comprising:

reading the radar data of the radar data cube from a memory via a DMA engine, which is part of an accessor, wherein the radar data was received by a receiver via a transmitted signal;

filtering, by a filter, the accessed radar data by the accessor in accordance with a predefined condition which is based on a range or a Doppler direction, wherein the filter is or corresponds to a mask that comprises information whether radar data accessed via the DMA engine is forwarded or not; and

forwarding the filtered radar data from the accessor towards an external apparatus, and forwarding a representation of the mask.

14. A device for accessing radar data of a radar data cube, comprising:

accessing means for reading the radar data of the radar data cube from a memory via a DMA engine, which is part of an accessor, wherein the radar data was received by a receiver via a transmitted signal;

filtering means for filtering the accessed radar data by the accessor in accordance with a predefined condition which is based on a range or a Doppler direction, wherein the filtering means is or corresponds to a mask that comprises information whether radar data accessed via the DMA engine is forwarded or not; and

forwarding means for forwarding the filtered radar data from the accessor towards an external apparatus, and forwarding a representation of the mask.

15. A non-transitory computer program product directly loadable into a memory of a digital processor, and comprising software code portions which cause a device for accessing radar data of a radar data cube to:

read the radar data of the radar data cube from a memory via a DMA engine, which is part of an accessor, wherein the radar data was received by a receiver via a transmitted signal;

filter, by a filter, the accessed radar data by the accessor in accordance with a predefined condition which is based on a range or a Doppler direction, wherein the filter is or corresponds to a mask that comprises information whether radar data accessed via the DMA engine is forwarded or not; and

forward the filtered radar data from the accessor towards an external apparatus, and forward a representation of the mask.