In signal processing, estimation is a technique for approximating an unobserved signal from an observed signal containing noise.
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Measuring time delay of audio signals
Before anyone yells at me I fully realize that this question has been asked numerous times. I assure you that I've read through the existing questions and answers but I am still confused about part of ...
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0answers
47 views
Estimating Plane Pose Without Knowledge of Intrinsic Camera Parameters
Assume a camera has no skew, and has square pixels, that is, its camera-calibration matrix, $K$, looks like:
$$
K = \left[\begin{matrix} \alpha&0&u_x\\0&\alpha&u_y\\0&0&1 ...
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How to model/estimate channel in discrete time with different sampling time?
I want to estimate a channel based on LTE 3GPP EVA with given power delay profile (set of average power and delay of channel taps).
...
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1answer
53 views
Estimating the frequency of the image [closed]
how to collect data sets from a two dimensional image for estimating the frequency of the image.
how to estimate the frequency of the image.
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What is the proper way to select the time-bandwidth product when doing multi-taper spectral estimation?
Frequently programs for calculating the spectrum of a signal using the multi-taper method require the user to specify the time-bandwidth product.
What considerations must be made when selecting the ...
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0answers
59 views
Voice sample prediction scheme
I have some telephone voice audio with occasional "blips" in the audio. The blips appear to come from an IP link buried in the PSTN (this is a conceptual explanation, so don't worry about things like ...
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vote
1answer
72 views
Establishing the function of a decaying signal
I have a set of samples from a signal. The signal is erratic in behaviour at the beginning but then it settles down and oscillates around the value of 100 (the frequency of oscillation is not ...
5
votes
1answer
319 views
Pose from Homography matrix - Zhang method
this post also contributes to the post at Step by Step Camera Pose Estimation for Visual Tracking and Planar Markers by Jav_Rock (since I cannot add any comment there and I don't know why)
It can be ...
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0answers
137 views
Equivalent number of looks (ENL) calculation
As stated in gagnon1997speckle in paragraph 2.2, under the unit-mean noise assumption one can say that:
\begin{equation}
ENL = \left(\frac{\bar{y}}{\sigma_{y}} \right)^2 = \frac{1}{\sigma_{n}^2}
...
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33 views
Statistical Signal Analysis - what to read [duplicate]
Possible Duplicate:
Introduction to Statistical Signal Processing
Currently I am doing an (undergrad) class on statistical signal analysis, but I find the reader at hand (no book, buh) very ...
7
votes
1answer
146 views
Filter order estimation
Assume some unknown but small and finite number of poles and zeros in the complex Z plane, all with complex conjugates, producing some response. Strictly from the absolute value of a set of equally ...
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51 views
How to estimate an auto-regressive model?
Given a periodic impulse train and it's impulse response, how is an auto-regressive model of this system computed or estimated?
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votes
3answers
156 views
How to estimate the mean of a clipped signal?
An accelerometer is used on a high vibration environment (a bicycle) to measure gravity. The signal clips, so data higher than a clipping value is clamped to that value.
So, simply filtering the ...
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votes
2answers
212 views
Peak location estimation for a triangle wave in AGWN?
Is there a more optimal peak location estimator specifically for triangle waves in AGWN, compared with peak estimation for generic waveforms?
For a "smooth" waveform in noise, a common peak locator ...
7
votes
2answers
200 views
How to do prediction using frequency domain data?
Both linear regression and Kalman filtering can be used to estimate and then predict from a time domain sequence of data (given some assumptions about the model behind the data).
What methods, if ...
7
votes
2answers
249 views
How to define SNR for multiple signals in noise?
I have to estimate the number of signals present in a measurement contaminated by additive noise given $n$-dimensional snapshot vectors $\bf x$, modeled as $ \bf x = \bf A \bf s + \bf z $ where $\bf ...
8
votes
2answers
610 views
Filtering RANSAC Estimated Homographies
I am using RANSAC algorithm for homography estimation between pairs of images taken with cameras which do not have any translation between them (pure rotation and change of scale/zoom). It works well ...
