一个十分好的IEC870

DM9000 数据手册中的物理接口寄存器中文资料, 对于英文不好的同学们很有帮助-DM9000 data manual physical interface register information in Chinese, English is not good for the students to be helpful

gprs短信的收发短信的源码, 已验证 可以使用

OpenObex库的API手册，需要学习openobex的朋友可以参考一下该手册-OpenObex the API manual We need to learn from openobex friends can make reference to the manual

DOS下的modem开发-DOS under the modem development

this code which is used to measure pulse width at port-this is code which is used to measure pulse width at port

手机j2me平台下的游戏-phone J2ME platform games

about the energy detection in wireless communication

vc编写，已删除DEBUG目录。大家运行，帮忙检测一下-vc prepared DEBUG directory has been deleted. We run to help detect this.

tgn channel model special

SYMPCHUNK sets the number of symbols demodulated at once with a constant carrier frequency and symbol timing offset. This is a fundamental decoder parameter that establishes its carrier and symbol timing tracking bandwidth. Set it too low and the demodulator can"t accurately determine carrier frequency and symbol timing on a noisy signal. Set it too high and the demodulator may not be able to track large symbol rate offsets caused by Doppler shift and/or A/D or spacecraft clock errors. Or it might have trouble tracking high rates of change in the carrier frequency due to Doppler acceleration.The current value of SYMPCHUNK is 4*N1 = 512, where N1 = 128 is the order of the convolutional interleaver. 512 symbols is 512 milliseconds at 1000 symbols/sec, giving a frequency/time determination SNR that is 10*log10(512) = 27 dB greater than the Es/N0, not counti