# Direction of arrival

**direction-of-arrival**

In signal processing, direction of arrival (DOA) denotes the direction from which usually a propagating wave arrives at a point, where usually a set of sensors are located.wikipedia

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### Beamforming

**beam formingbeamformerAntenna beamforming**

Often there is the associated technique of beamforming which is estimating the signal from a given direction.

Wideband Code Division Multiple Access (WCDMA) supports direction of arrival (DOA) based beamforming

### SAMV (algorithm)

**SAMViterative Sparse Asymptotic Minimum Variance**

SAMV

SAMV (iterative Sparse Asymptotic Minimum Variance ) is a parameter-free superresolution algorithm for the linear inverse problem in spectral estimation, direction-of-arrival (DOA) estimation and tomographic reconstruction with applications in signal processing, medical imaging and remote sensing.

### Signal processing

**signal analysissignalsignal processor**

In signal processing, direction of arrival (DOA) denotes the direction from which usually a propagating wave arrives at a point, where usually a set of sensors are located.

### Wave propagation

**propagationpropagatespropagating**

In signal processing, direction of arrival (DOA) denotes the direction from which usually a propagating wave arrives at a point, where usually a set of sensors are located.

### Wave

**wavestravelling wavetraveling wave**

In signal processing, direction of arrival (DOA) denotes the direction from which usually a propagating wave arrives at a point, where usually a set of sensors are located.

### Algorithm

**algorithmscomputer algorithmalgorithm design**

Direction of different sound sources around you are also located by you using a process similar to those used by the algorithms in the literature

### Radio telescope

**radio telescopesradiotelescoperadio-telescope**

Radio telescopes use these techniques to look at a certain location in the sky

### Radio frequency

**RFradio frequenciesradio-frequency**

Recently beamforming has also been used in radio frequency (RF) applications such as wireless communication. Compared with the spatial diversity techniques, beamforming is preferred in terms of complexity. On the other hand, beamforming in general has much lower data rates. In multiple access channels (code-division multiple access (CDMA), frequency-division multiple access (FDMA), time-division multiple access (TDMA)), beamforming is necessary and sufficient

### Wireless

**wireless communicationwireless communicationswireless internet**

Recently beamforming has also been used in radio frequency (RF) applications such as wireless communication. Compared with the spatial diversity techniques, beamforming is preferred in terms of complexity. On the other hand, beamforming in general has much lower data rates. In multiple access channels (code-division multiple access (CDMA), frequency-division multiple access (FDMA), time-division multiple access (TDMA)), beamforming is necessary and sufficient

### Antenna diversity

**space diversitydiversitydiversity coding**

Recently beamforming has also been used in radio frequency (RF) applications such as wireless communication. Compared with the spatial diversity techniques, beamforming is preferred in terms of complexity. On the other hand, beamforming in general has much lower data rates. In multiple access channels (code-division multiple access (CDMA), frequency-division multiple access (FDMA), time-division multiple access (TDMA)), beamforming is necessary and sufficient

### Code-division multiple access

**CDMAcode division multiple accessCDMA-450**

### Frequency-division multiple access

**FDMAfrequency division multiple accessAnalog**

### Time-division multiple access

**TDMAtime division multiple accessdynamic TDMA**

### Angle of arrival

**AoAAngular (Angle-of-Arrival) Spectrum**

Various techniques for calculating the direction of arrival, such as angle of arrival (AoA), time difference of arrival (TDOA), frequency difference of arrival (FDOA), or other similar associated techniques.

### Multilateration

**time difference of arrivalUnilaterationcross-referenced**

Various techniques for calculating the direction of arrival, such as angle of arrival (AoA), time difference of arrival (TDOA), frequency difference of arrival (FDOA), or other similar associated techniques.

### FDOA

**frequency difference of arrival**

Various techniques for calculating the direction of arrival, such as angle of arrival (AoA), time difference of arrival (TDOA), frequency difference of arrival (FDOA), or other similar associated techniques.

### MUSIC (algorithm)

**MUltiple SIgnal ClassificationMUSICMUSIC (Multiple Signal Classification)**

MUSIC

### Maximum likelihood estimation

**maximum likelihoodmaximum likelihood estimatormaximum likelihood estimate**

Maximum likelihood

### Sensor array

**uniform linear array**

Another example of sensor array application is to estimate the direction of arrival of impinging electromagnetic waves.

### Smart antenna

**smart antennasantennaantenna array**

Smart antennas (also known as adaptive array antennas, digital antenna arrays, multiple antennas and, recently, MIMO) are antenna arrays with smart signal processing algorithms used to identify spatial signal signatures such as the direction of arrival (DOA) of the signal, and use them to calculate beamforming vectors which are used to track and locate the antenna beam on the mobile/target.

### Array processing

**array signal processingarrays**

The problems associated with array processing include the number of sources used, their direction of arrivals, and their signal waveforms.

### MIMO radar

To estimate the Direction of arrival of the targets according to the N*M signals, methods like MUSIC (algorithm) and Maximum likelihood estimation are commonly used with good results.

### Channel sounding

Direction of arrival (DOA)

### Inverse problem

**inverse problemsinversioninverse method**

The linear inverse problem is also the fundamental of spectral estimation and direction-of-arrival (DOA) estimation in signal processing.