Beamforming devices and methods
Devices and methods are provided for directionally receiving and/or transmitting acoustic waves and/or radio waves for use in applications such as wireless communications systems and/or radar. High directional gain and spatial selectivity are achieved while employing an array of receiving antennas that is small as measured in units of the wavelength of radio waves being received or transmitted, especially in the case of spatially oversampled arrays. Frequency/wavenumber, multi-dimensional spectrum analysis, as well as one-dimensional frequency spectrum analysis can be performed.
1. A system comprising:
circuitry for receiving a plurality of wireless signals at the same time;
a processor for performing a Hermetic transform on signals derived from the plurality of wireless signals, and for providing an output based on the results of the Hermetic transform.
2. The system of claim 1 , wherein the circuitry is coupled to a plurality of antennas.
3. The system of claim 1 , wherein the circuitry oversamples the wireless signals.
4. The system of claim 1 , wherein the circuitry and processor are included in a mobile station.
5. The system of claim 1 , wherein the circuitry includes circuitry for receiving and demodulating in-phase and quadrature data.
6. The system of claim 1 , further comprising a memory for storing matrix data for use in performing the Hermetic transform.
7. The system of claim 1 , wherein the wireless signals are cellular communication signals, the circuitry for signals, the circuitry for down converting, sampling, and demodulating the cellular communications wireless signals.
8. The system of claim 1 , further comprising a plurality of antennas coupled to the circuitry for receiving the plurality of wireless signals.
9. A method comprising:
receiving a plurality of wireless signals using receiver circuitry;
performing a Hermetic transform on signals derived from the plurality of wireless signals using a processor; and
providing an output based on the result of the Hermetic transform using the processor.
10. The method of claim 9 , wherein the plurality of signals are received from multiple antennas.
11. The method of claim 9 , wherein the Hermetic transform provides a plurality of output channels.
12. The method of claim 9 , further comprising filtering the received signals using filter circuitry prior to the Hermetic transform.
13. The method of claim 9 , wherein the received signals are RF signals received at a base station from a mobile device.
14. The method of claim 9 , wherein the received signals are RF signals received at a mobile device.
15. The method of claim 9 , wherein the received signals represent in-phase and quadrature data.