难忘那“冬青”

鹅毛般的雪花自天穹簌簌落下,天地间浑然一片银白。巍巍的哈达岭一改往日严峻陡峭的面孔,此时如一头憨厚的北极熊静卧在雪野中。山岭上那几个孤独的哨位,被积雪覆盖,仿佛成了'熊背'上的点缀。刚刚下连的我此时无心欣赏周边的雪景,跟在班长后头,踩着厚厚的积雪默默走向哨位。我自小生长在繁华都市,见惯了车水马龙,本以为能留在城市部队里,没成想新训结束后的一纸分配命令,让我来到这人迹罕至的偏远哨所。站岗、巡逻、挑水、劈柴、种菜,没有一样是我拿手的.

An indoor positioning system for mobile target tracking based on VLC and IMU fusion

An indoor positioning system( IPS) is designed to realize positioning and tracking of mobile targets,by taking advantages of both the visible light communication( VLC) and inertial measurement unit( IMU). The platform of the IPS is designed,which consists of the light-emitting diode( LED)based transmitter,the receiver and the positioning server. To reduce the impact caused by measurement errors,both inertial sensing data and the received signal strength( RSS) from the VLC are calibrated. Then,a practical propagation model is established to obtain the distance between the transmitter and the receiver from the RSS measurements. Furthermore,a hybrid positioning algorithm is proposed by using the adaptive Kalman filter( AKF) and the weighted least squares( WLS)trilateration to estimate the positions of the mobile targets.Experimental results show that the developed IPS using the proposed hybrid positioning algorithm can extend the localization area of VLC,mitigate the IMU drifts and improve the positioning accuracy of mobile targets.

我想种一颗星星

我有无数金色的梦想,遗失在生活的路上。难道它还不如冷冷的星月,虽然遥远,却也久长。——顾城在乡村过年,少了推杯换盏,一行人在饭后沿着乡间小路漫步。我牵着七岁的表妹,这个平日里见惯了都市灯红酒绿、车水马龙的小姑娘对此刻安谧的乡村充满着好奇,无时无刻不用她那灵动的双眼顾盼四周。

等闲识得乡贤风

一在福清的版图上,城头镇紧挨着我的家乡海口镇,像是兄弟。从海城路望去,这个镇子并不起眼。田野,倒是颇为平坦广阔,错落其间的自然是农家、厂房,这些农村惯见景象平淡无奇,以致从海城路驱车而过的人稍不留神就会忽略了它。但海口毕竟是福清'老五镇'之一,扼龙江入海之要冲,古时航运发达,由内河直通大海.

從别禽獸到遠鬼神——儒家“人文”精神簡論

從儒家文明中揭示出強烈的人文精神,或者直接將儒家表達爲一種人文主義,這已經是現代學人司空見慣的做法。在過去上百年的現代思想歷程中,凡是做過儒家學問的人,鮮有不從人文精神或人文觀念的角度來論一下儒學的。這其中的代表性人物當推唐君毅先生,他以“中國人文精神”爲主線來梳理整個以儒家爲主的中國傅統文明,就是將懦家直接定位爲一種人文主義.