What is MVDR?

MVDR (Minimum Variance Distortionless Response) is a typical beamforming (beamformer) algorithm, which was proposed by Capon in 1967 [3. J. Capon, “High-resolution frequency-wavenumber spectrum analysis,” Proceedings of the IEEE, vol.

What is LCMV beamformer?

Linear constraint minimum variance (LCMV) is one of the adaptive beamforming techniques that is commonly applied to cancel interfering signals and steer or produce a strong beam to the desired signal through its computed weight vectors.

What is Capon beamforming?

The Capon. beamformer aims at maximizing the output SINR by maintaining a distortionless response towards the. SOI and minimizing the output power of interference-plus-noise.

What is diagonal loading?

Diagonal loading is one of the most widely used and effective methods to improve robustness of adaptive beamformers. The authors consider its application to the case of steering vector errors, i.e. when there exists a mismatch between the actual steering vector of interest and the presumed one.

What is a steering vector?

A steering vector represents the set of phase delays a plane wave experiences, evaluated at a set of array elements (antennas). The phases are specified with respect to an arbitrary origin. For instance, suppose a plane wave is described by a wave vector k.

What is beamforming in wireless communication?

Beamforming is a type of radio frequency (RF) management in which a wireless signal is directed toward a specific receiving device. Beamforming is applied to numerous technologies, including wireless communications, acoustics, radar and sonar.

What is Lcmv?

Lymphocytic Choriomeningitis Virus (LCMV) is a virus carried by rodents such as hamsters, guinea pigs or mice. LCMV rarely infects humans and most people with normal immune systems who are exposed to the virus do not become ill.

What is a steering matrix?

The steering matrix is a precise mathematical description of how the antenna array should use each individual element to select a spatial path for the transmission.

What is antenna array manifold?

The manifold of an array of N sensors as a function of the azimuth and elevation angles is a surface embedded in an N-dimensional complex space. The performance of an array system is a function of the properties of this complex hypersurface which in tum are functions of the array geometry itself.

What is the difference between MIMO and beamforming?

MIMO (Multiple Input Multiple Output) antennas operate by breaking high data rate signals into multiple lower data rate signals in Tx mode that are recombined at the receiver. Beamforming arrays are inherently different from MIMO in that the multiple columns of dipoles work together to create a single high gain signal.

How do you tell if you have LCMV?

Symptoms of LCMV infection are similar to those for influenza and include fever, stiff neck, a lack of appetite, muscle aches, headache, nausea and vomiting and occur 1–2 weeks after exposure to an infected rodent. The symptoms may be much more severe in pregnant women and people with a weakened immune system.