自空他亦空——宗喀巴对“他空”见的批判

"他空"见是藏传佛教觉囊派的主要哲学见解。但在宗喀巴看来,根本没有"自空"与"他空"的分别,因为他性于他亦是自性,所以不仅自性空他性亦空,即"自空他亦空"(毕竟空)才是佛陀之究竟了义说。宗喀巴认为,觉囊派将佛陀在第三转法轮时所宣说的权便义即常恒坚固不变之如来藏等胜义有,误认为是如来如实言而判为究竟了义说,实质上是于性空之空执为谛实或见为实事,是遮破太狭,故必堕常边。

藏传佛教觉囊派的哲学思想

觉囊派是藏传佛教最具特色的流派。藏传佛教其他教派在哲学上一般都是坚持缘起性空,而惟独此派认为世界是“他空”而不是“自空”,是法空而法性不空,并从这一视角赋予了大乘佛教“二谛义”和瑜伽行派“三性说”以新的含义,表现出了鲜明的理论特点。觉囊派的认识论也是唯心主义证悟论,认为佛教有自性,如来藏为法界之种子,含有自觉智,众生能否成佛,仅在迷悟之分,因、果、道三者之关系足以证明这一点。觉囊派在密宗教法上主张显密兼修,身心二元,与其他教派毫无二致。

Bi-conjugate gradient based computation of weight vector in space-time adaptive processing

Dear editor,Space-time adaptive processing(STAP)techniques can effectively suppress strong ground clutter and detect moving target for airborne phased array radar by combing spatial signals and the temporal pulses simultaneously[1].It is known that,when the clutter satisfies the independent and identically-distributed(i.i.d.)condition,the sample matrix inversion(SMI)-based STAP[1]requires twice the number of degree of freedom