Questions tagged [processing-gain]
9 questions
4
votes
2 answers
Estimating effect of filter on headroom
I am working with beamforming algorithms for speaker arrays. One of the problems we face is that we need to estimate the maximum amplitude of our test signals after we applied FIR/IIR filters to them. I am looking for ways to express the reduction…
TheSlowGrowth
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1 answer
Radar Pulse Compression Gain (PCR)
Assume a monostatic radar is transmitting a pulsed waveform. The pulse has been modulated by a Barker code with$\ N$ chips or bits. The waveform chip rate is $\tau_c $, the radar receiver's detection bandwidth is $\beta_c = 1/\tau_c$, and the…
random_dsp_guy
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How to implement Auto Gain Control (AGC) before and after mixng realtime audio for a conference?
I mix audio(16bit,16khz, little-endian, mono,frame-duration:60ms) packets after dividing the short values by participant count so it never gets clipped. but before that, I need to apply a certain gain to all incoming voices so that they stay at the…
Nafiul Alam Fuji
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1
vote
2 answers
processing gain in the receiver
I am always confused about the processing gain in the receiver. Assume my receiver had the following:
$$\boxed{\text{LNA}}{\longrightarrow}\boxed{\text{Mixer}}{\longrightarrow}\boxed{\text{Filter}}{\longrightarrow}\boxed{\text{ADC}}$$
Does the…
nancy
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vote
1 answer
Recursive filter gain
I implemented a filter similar to the one below, within a FPGA. Two substractors and an accumulator.
The recursive equation is given by:
My inputs are exponentially decaying pulses of the form sampled every n
I want to express y[n] as a function…
Dams0622
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votes
1 answer
How to apply the gain factor G to SOS coefficients when designing a IIR filter on sptool (MATLAB)?
After designing an IIR filter on sptool, I export the coefficients (SOS) and gain (G) into a .mat file. When filtering, we can use sosfilt(SOS, x), which results in the correct output but with the wrong scaling. I guess this is what the gain…
hirschme
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Frequency gain enhancement on Android
I am a social worker trying to fund some student programmers to build a software to help senior citizens listen to audio on their phones better. The basic idea is as simple as applying selective gains in select frequency bands. I want to know the…
Deepam
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1 answer
Signal analysis using a buffer
I am performing an analysis of an output signal in the interval $t<0$ from the operational amplifier given in the following image
where $v_{C_1}(0^-)$ and $v_{C_2}(0^-)$ are the initial conditions to be computed of two capacitors. As you can see,…
Martín
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Output eqaution of a repeater?
Assume we have a signal repeater, a simple repeater that amplifies the signal then transmits it as is.
Does the output power of the repeater is dependent on the received signal at the repeater ?
for example:
Case-1: A repeater received power of…
