560/14 = 40
diferece between ratio and regression
When using front-end estimation, we add or subtract the front digits, and then adjust for a more accurate estimation by estimating the sum of the digits to the right of the decimal point.
Estimation
It is very easy to find high quality rounding and estimation worksheets for kids on the website WWW.estimation.com , this website also features a "grade" (or "class") filter , which allows more precise results. Also WWW.mathworksheets4kids.com has a wide range of estimation sheets available.
Channel estimation in Orthogonal Frequency Division Multiplexing (OFDM) refers to the process of estimating the characteristics of the communication channel through which the OFDM signals are transmitted. This estimation is crucial for accurately recovering the transmitted data, as it allows the receiver to compensate for the effects of multipath fading and frequency-selective fading inherent in wireless channels. Techniques such as pilot symbols and training sequences are often used to aid in the estimation process. Accurate channel estimation helps improve the overall performance and reliability of the OFDM system.
39
546
0.1538
42
32.1176
60.6667
6281.6593
0.0128
3.0333
91
546
0.0092