在android 平台上实现 gsm定位功能-Gsm positioning function on the android platform

android平台，功能：根据GSM的信号强度显示信号格。 文件结构：工程文件，可直接运行！-android platform features: display signal format according to the GSM signal strength. File Structure: engineering documents, can be directly run!

This function is used to calculate the arbitrary function of the first order partial derivative (numerical methods), GSM is GMSK modulation signal generation, Build a framework OFDM communication system.