Utkarsh Singh

13 Questions 38 Answers 0 Followers

Questions related from Utkarsh Singh

How to estimate contribution of power quality issues from MV grid?

Considering the point of estimation (POE) being an MV/ LV Transformer, how to calculate the contribution of continuous phenomena (as listed in EN 50160) from MV? Is the estimation possible in...

14 January 2021 4,409 5 View

Mathematical significance of different signal processing techniques

In several discussions, I have often come across a question on the 'mathematical meaning of the various signal processing techniques' such as Fourier transform, short-term fourier transform,...

01 January 1970 1,039 0 View

How to compute computational complexity of various signal processing techniques?

I have some idea about the Big O notation. Please direct me to any article or tutorial so that I can derive the computational complexity of any algorithm on my own

01 January 1970 1,046 2 View

Are there any available techniques (hardware/ software) to analyze harmonics of frequency >2 kHz?

Is it possible to visualize such high frequencies in distribution networks with the conventional signal processing techniques?

01 January 1970 8,695 6 View

Power Quality Monitoring

Are there any monitoring techniques or devices for power quality monitoring in high voltage levels (HV, MV, HVDC)? How is it ascertained if a power quality issue is propagating from the high...

01 January 1970 5,187 4 View

Which is the most suitable technique for event forecasting based on real-time data analysis?

Kindly share some publications which have addressed real-life forecasting problems.

01 January 1970 7,867 10 View

Why do we need three different sigmoid activation functions in LSTM ?

Refer to the attached image (Source: https://medium.com/mlreview/understanding-lstm-and-its-diagrams-37e2f46f1714) Why do we need two extra sigmoids (marked with red in fig), when the outcome of...

01 January 1970 1,163 9 View

How should I interpret the outcomes of corrcoef and xcorr while analyzing relationship between two time series?

I want to find relation between 2 time series: a and b. I followed two ways: 1) Differentiated both 'a' and 'b' at lag 1 to remove trend (giving differenced time series 'ad' and 'bd') and then...

01 January 1970 6,887 3 View

How to plot confidence intervals in xcorr in python?

Is there any way to plot 95% CI around a numpy array in Python? The closest I managed to find was 'seaborn.pointplot' but didn't really work out for me somehow Shows an error : AttributeError:...

01 January 1970 6,644 4 View

What is the computational complexity for element-wise operations between two matrices?

I need to know the computational complexity of two operations in terms of Big O notation: (i) Elementwise division of two NxM matrices (ii) Elementwise multiplication of two NxM matrices In both...

01 January 1970 793 6 View

How to estimate the extent of overlap in window based signal processing? Please answer according to the problem description?

I am using a window of 400 samples to analyze a signal with 1280 samples (sampling frequency used is 6.4 kHz). How do I find the overlap length in this case?

01 January 1970 3,947 2 View

On what basis do we claim that one signal processing technique offers better resolution than the other?

Based on the formula Δ f=1/T=fs/N, it can be understood that in order to improve time or frequency resolution one has to either change signal properties or adjust window length. Then how can it...

01 January 1970 4,623 11 View

What is the effect of 'window overlap length' on 'signal energy density' estimation?

Does it also have any impact on noise immunity?

01 January 1970 997 1 View