Course-Project

Those projects are parts of my course projects, which is interesting or is worth pondering.

Numerical Analysis

Probject1-weight and height of children

The main aim is to calculate the children' weight and height according to reference data. The main method I use is cubic spline interpolation with and . Before this, I use least square fit to gather the derivatives at x_0 and x_n. Besides, I design the GUI with Matlab 2016b. Therefore, there may be some problems if your matlab version is lower than mine.

Principle of Communication

Simulation of FSK(Frequency Shift Keying)

The main aim to to simulate the FSK signal and its error rate. Them compare simulation result with theoretical result.

The file test.m is for noncorrelated demodulation, and test_co.m is for correlated demodulation. If it is slow, maybe you should change same parameters, like (transmit power of one bit) or the 10000 in this code.

num = 10000*ceil(1/P_e_a(i));

However, the preformance of simualtion will be worse if number is lower. I suggust this number should be bigger than 100 according to Monte-Carlo simulation.

Computer Graphics