Stability analysis of lead-vehicle control model in cooperative adaptive cruise control platoon within heterogeneous traffic flow

In order to analyze the stability impact of cooperative adaptive cruise control （CACC） platoon, an adaptive control model designed for the lead vehicle in a CACC platoon （LCACC model） in heterogeneous traffic flow with both CACC and manual vehicles is proposed. Considering the communication delay of a CACC platoon, a frequency-domain approach is taken to analyze the stability conditions of the novel lead-vehicle CACC model. Field trajectory data from the next-generation simulation （NGSIM） data is used as the initial condition. To account for car- following behaviors in reality, an intelligent driver model （IDM） is calibrated with the same NGSIM dataset from a previous study to model manual vehicles. The stability conditions of the proposed model are validated by the ring- road stability analysis. The ring-road test results indicate the potential of the LCACC model for improving the traffic flow stability impact of CACC platoons. Sensitivity analysis shows that the CACC fleet size has impact on the parameters of the LCACC model.

怀念李育廉教练

惊悉原湖北省航模队主教练李育廉于2009年11月11日不幸去世，心情非常沉痛。尽管我与他相距甚远，多年来只在全国赛等场合见面、合作，但他对我的帮助和影响不小。

执子之手 风雨同舟

我与《航空模型》有很深的渊源，可以说是看着他出生和长大的。在这个喜庆的时刻，禁不住回忆起《航空模型》问世前后的那些事情。

三十而立 更进一步

贵刊经过几代编辑老师的默默无闻、呕心沥血、团结奋斗，迎来了而立之年，特提笔助兴，请赐教。

实践有快乐

现在的我，在课余时间经常与间学们讨论与航模有关的话题。而让我有机会发挥这一特长的地方，正是学校的航模队。

三十而立

时光如梭，不知不觉，《航空模型》创刊30年了! 这几天，我一遍遍翻阅着30年来的172期《航空模型》，恍若趟过漫漫的时光长河，依稀看到了《航空模型》一路走来的踪迹。

贺《航空模型》创刊30年——再回首 我心依旧

新年伊始，迎来了《航空模型》创刊30周年华诞。许多读者、作者以及编者都送上了诚挚的祝福和感人的寄语。我们特别编选了一部分与大家同贺，并向关心、支持、帮助过本刊的所有单位和人士表示深深的感谢和敬意。