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2. Construction estimating software - Wikipedia

   en.wikipedia.org/wiki/Construction_estimating...

   A cost estimator will typically use estimating software to estimate their bid price for a project, which will ultimately become part of a resulting construction contract. Some architects, engineers, construction managers, and others may also use cost estimating software to prepare cost estimates for purposes other than bidding such as budgeting ...

3. Spectral density estimation - Wikipedia

   en.wikipedia.org/wiki/Spectral_density_estimation

   Multitaper is a periodogram-based method that uses multiple tapers, or windows, to form independent estimates of the spectral density to reduce variance of the spectral density estimate; Singular spectrum analysis is a nonparametric method that uses a singular value decomposition of the covariance matrix to estimate the spectral density

4. Periodogram - Wikipedia

   en.wikipedia.org/wiki/Periodogram

   In signal processing, a periodogram is an estimate of the spectral density of a signal. The term was coined by Arthur Schuster in 1898. [1] Today, the periodogram is a component of more sophisticated methods (see spectral estimation). It is the most common tool for examining the amplitude vs frequency characteristics of FIR filters and window ...

5. Moving horizon estimation - Wikipedia

   en.wikipedia.org/wiki/Moving_Horizon_Estimation

   Moving horizon estimation uses a sliding time window. At each sampling time the window moves one step forward. It estimates the states in the window by analyzing the measured output sequence and uses the last estimated state out of the window, as the prior knowledge.

6. Welch's method - Wikipedia

   en.wikipedia.org/wiki/Welch's_method

   The method is based on the concept of using periodogram spectrum estimates, which are the result of converting a signal from the time domain to the frequency domain. Welch's method is an improvement on the standard periodogram spectrum estimating method and on Bartlett's method , in that it reduces noise in the estimated power spectra in ...

7. AOL - Finance News & Latest Business Headlines - AOL.com

   www.aol.com/real-estate

   Get breaking Finance news and the latest business articles from AOL. From stock market news to jobs and real estate, it can all be found here.