Integrated radar apparatus and intergrated antenna apparatus
View Patent ↗An embodiment of the present invention discloses a radar apparatus and an antenna apparatus, and more particularly, an integrated radar apparatus and an integrated antenna apparatus which make it possible to attain angle resolution with high definition, to decrease size and the number of devices, to integrate long and mid-range radar function and short range radar function.
1. An integrated radar apparatus comprising:
an antenna unit having a long and mid-range antenna unit and a short range antenna unit, wherein the long and mid-range antenna unit includes a plurality of long and mid-range transmitting antennas and a plurality of long and mid-range receiving antennas and the short range antenna unit includes one or more short range transmitting antennas and one or more short range receiving antennas; and
a transceiver unit configured to control the long and mid-range antenna unit and the short range antenna unit according to a switching mode, transmit one or more of the long and mid-range signals and the short range signals, and receive one or more of the long and mid-range echo signals generated by reflecting the long and mid-range signals on long and mid-range targets and short range echo signals generated by reflecting the short range signals on short range targets,
wherein the transceiver unit includes a transmitting terminal switch and a receiving terminal switch,
the transmitting terminal switch switches to an antenna selected from the plurality of long and mid-range transmitting antennas and the one or more short range transmitting antennas, and
the receiving terminal switch switches to an antenna selected from the plurality of long and mid-range receiving antennas and the one or more short range receiving antennas.
2. An integrated radar apparatus as claimed in claim 1 , wherein the transceiver unit transmits the long and mid-range signals or the short range signals through the selected long and mid-range transmitting antenna or the selected short range transmitting antenna.
3. An integrated radar apparatus as claimed in claim 1 , wherein the transceiver unit receives the long and mid-range echo signals or the short range echo signals through the selected long and mid-range receiving antenna or the selected short range receiving antenna.
4. An integrated radar apparatus as claimed in claim 1 , wherein the transceiver unit comprises:
a transmitting unit having an oscillating unit for generating one or more of the long and mid-range signals and the short range signals; and
a receiving unit having a low-noise amplifying/mixing unit for low-noise amplifying one or more of the long and mid-range echo signals and the short range echo signals and mixing one or more of the long and mid-range echo signals and the short range echo signals which are low-noise amplified, and a amplifying/converting unit for amplifying one or more of the long and mid-range echo signals and the short range echo signals which are mixed, digital-converting one or more of the long and mid-range echo signals and the short range echo signals which are amplified, and generating one or more of long and mid-range receiving data and short range receiving data.
5. An integrated radar apparatus as claimed in claim 4 , wherein the oscillating unit and the low-noise amplifying/mixing unit included in the transceiver unit use only one channel.
6. An integrated radar apparatus as claimed in claim 4 , wherein the apparatus further comprises:
a first processing unit for obtaining one or more transmitting data of long and mid-range data and short range data and one or more receiving data of the digital-converted long and mid-range receiving data and the digital-converted short range receiving data which are digital-converted at the amplifying/converting unit, controlling generation of one or more of the long and mid-range signals and the short range signals on the basis of the obtained transmitting data, synchronizing and frequency-converting the obtained transmitting data and the obtained receiving data; and
a second processing unit for performing CFAR (Constant False Alarm Rate) calculation, a tracking calculation and target selection calculation on the basis of the frequency-converted transmitting data and the frequency-converted receiving data, and extracting angle information, velocity information and distance information about one or more of the long and mid-range targets and the short range targets.
7. An integrated radar apparatus as claimed in claim 6 , wherein the second processing unit performs a failsafe function and a diagnostic function while communicating with one or more of an engine, a peripheral sensor, a peripheral electronic control unit and a vehicle control system.
8. An integrated radar apparatus as claimed in claim 6 , wherein the first processing unit is embodied by means of FPGA (Field Programmable Gate Array) or ASIC (Application Specific Integrated Circuit), and
the second processing unit is embodied by means of MCU (Micro Controller Unit) or DSP (Digital Signal Processor).
9. An integrated radar apparatus as claimed in claim 1 , wherein the transceiver unit is embodied by means of Discrete IC, One-chip or Two-chip, using one of GaAs (Gallium Arsenide), SiGe (Silicon Germanium) and CMOS (Complementary Metal-Oxide Semiconductor).
10. An integrated radar apparatus as claimed in claim 1 , wherein a distance between the plurality of long and mid-range transmitting antennas is equal to the product of a distance between the plurality of long and mid-range receiving antennas and the number of the plurality of long and mid-range receiving antennas.
11. An integrated radar apparatus as claimed in claim 1 , wherein the short range antenna unit is included in the long and mid-range antenna unit.
12. An integrated radar apparatus as claimed in claim 11 , wherein the one or more of the short range transmitting antennas and the one or more of the short range receiving antennas included in the short range antenna unit are arranged between the plurality of long and mid-range transmitting antennas included in the long and mid-range antenna unit.
13. An integrated radar apparatus as claimed in claim 1 , wherein the product of the number of the plurality of the long and mid-range transmitting antennas and the number of the plurality of the long and mid-range receiving antennas is determined to be inversely proportional to angle resolution required by the integrated radar apparatus.
14. An integrated radar apparatus as claimed in claim 1 , wherein the integrated radar apparatus is linked to a vehicle system using a long range radar signal, a vehicle system using a mid-range radar signal, and a vehicle system using a short range radar signal.