Calculating Optimal Weights for MVDR Signal Processing Gain

AI Thread Summary
The discussion focuses on calculating optimal weights using the MVDR method for a uniformly spaced linear array of sensors. The processing gain is defined as the output signal-to-interference ratio (SIR) divided by the input SIR. A complex value was obtained during calculations, raising questions about its validity. It is clarified that while the power is not represented solely by the real part, the magnitude of the output determines the power. Complex numbers can be interpreted in terms of their real and imaginary components or as a magnitude at a specific phase angle.
nikki92
Messages
37
Reaction score
0
Using a MVDR method for a uniformly spaced linear array of sensors, I calculated the optimal weights. The procesing gain is (SIR)out / (SIR)in . The value turned out complex. Is this possible/makes sense?
 
Engineering news on Phys.org
A phase shift would be represented by a complex gain.
 
Thanks! So the power is simply represented by the real part?
 
No. The magnitude of the output determines the power. Complex numbers can be thought of as real and imaginary (in-phase and quadrature components), or as a magnitude at a phase angle.
 

Thread 'Why does the amperage go real high if there is a low voltage short?'

I used to be an HVAC technician. One time I had a service call in which there was no power to the thermostat. The thermostat did not have power because the fuse in the air handler was blown. The fuse in the air handler was blown because there was a low voltage short. The rubber coating on one of the thermostat wires was chewed off by a rodent. The exposed metal in the thermostat wire was touching the metal cabinet of the air handler. This was a low voltage short. This low voltage...
View full post »

Thread 'How might electronics be different if AC voltage was 72V at 45 Hz?'

Hey guys. I have a question related to electricity and alternating current. Say an alien fictional society developed electricity, and settled on a standard like 73V AC current at 46 Hz. How would appliances be designed, and what impact would the lower frequency and voltage have on transformers, wiring, TVs, computers, LEDs, motors, and heating, assuming the laws of physics and technology are the same as on Earth?
View full post »
Thread 'How Does Jaguar's 1980s V12 Dual Coil Ignition System Enhance Spark Strength?'

Thread 'How Does Jaguar's 1980s V12 Dual Coil Ignition System Enhance Spark Strength?'

I have come across a dual coil ignition system as used by Jaguar on their V12 in the 1980's. It uses two ignition coils with their primary windings wired in parallel. The primary coil has its secondary winding wired to the distributor and then to the spark plugs as is standard practice. However, the auxiliary coil has it secondary winding output sealed off. The purpose of the system was to provide a stronger spark to the plugs, always a difficult task with the very short dwell time of a...
View full post »

Similar threads

Calculate IC equalizer frequencies and gain
Replies
1
Views
1K
Gain calculation of tube class AB output stage
Replies
10
Views
2K
Antenna gain reciprocity violation of conservation of energy?
Replies
37
Views
5K
Trying to get raw signal from SRF02 ultrasonic sensor
Replies
1
Views
2K
Magnetic encoder signal processing
Replies
2
Views
2K
Are Feed-Forward Processes Reversible?
Replies
2
Views
3K
Signal processing approach to stydy the brain
Replies
4
Views
2K
Understanding Analog-to-Digital Conversion for Digital Computing and Processing
Replies
9
Views
3K
Engineering Diff gain of a push pull degenerated differential pair
Replies
6
Views
1K
I What is a distinct feature of an ambiguous result?
Replies
15
Views
4K

Hot Threads

Recent Insights

Back
Top