摘要
通常电台只有天线、耳机和话筒3个外围接口,难以实现性能指标的全面测试。提出了一套基于计算机GPIB总线控制技术的电台性能测试方法,实时采集电台的射频、音频、调制信号,来分析电台的调制度、灵敏度、选择性、失真度、频率响应等指标参数,实现电台性能指标快速、准确的自动测定和误差分析。实践证明,这套方法能够提高电台测试的效率和准确度。
Usually, there are only antenna, earphone and mike interfaces in a radio, it is difficult to test all capabilities of radio. A suit of automatic testing methods based on technique of computer GPIB bus control is designed. By acquiring the radio＇ s signals such as radio frequency, audio frequency and modulated signals at real time, these methods can analyse parameters, including modulate factor, selectivity, frequency response, sensitivity etc, and test all parameters of lifesaving radio automatically, quickly and exactly. Practice result has proved that these methods can improve testing efficiency and veracity.
出处
《测控技术》
CSCD
2007年第5期40-42,45,共4页
Measurement & Control Technology
