VHDL写的fpga程序，可产生三角波，方波据此波，正弦波，可实现任意频偏的调频，调相，调幅-Fpga write VHDL program can generate triangle wave, square wave accordingly wave, sine wave, can achieve any frequency offset of the FM, PM, AM

用c语言基于查表法生成正弦波，联系51等硬件可以具体实现-C language used to generate look-up table method based on sine wave, contact 51 can be hardware such as concrete realization

声卡示波器，labview，世界上最好的，来自德国-Author: Christian Zeitnitz Main features: The PC based Soundcard Oscilloscope receives its data the Soundcard with 44.1kHz and 16 Bit resolution. The data source can be selected in the Windows mixer (Microphone, L