| 1. | Pbx pulse amplitude modulation 脉冲幅度调制 |
| 2. | Pam pulse amplitude modulation 脉冲幅度调制 |
| 3. | Pam pulse amplitude modulation 脉幅调制 |
| 4. | Pulse amplitude modulation 脉冲辐度调制 |
| 5. | Pulse amplitude modulation 脉冲幅度灯 |
| 6. | Considering that : ( 1 ) radar can achieve its basic application of collision avoidance and warning with the only function of ranging ; ( 2 ) under high speed conditions , radar should have lager effective range than that under slow speed , we designed a new easily realizable automotive anticollision radar , which employs centimeter wave and square pulse amplitude modulation 考虑到: ( 1 )核心的测距功能实现以后,雷达已经能够完成基本的防撞预警; ( 2 )在汽车高速运行的情况下,防撞雷达的最小可测距范围和最大作用距离应比低速状态下大。本文采用了技术成熟,易于工程实现的厘米波脉冲雷达,以单波束辐射的方式测距。 |