文件名称:modified-stfd_esprit
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提 出了基于修正空间 时频分布( S TF D) 矩阵 的 ES P RI T算法 以实现 对宽 带线性调 频信号 的到达
角估计-Th e a l g or i t h m f o r di r e c t i o n- o f- a r r i va l o f t he wi d e ba n d c hi r p s i gna l s ba s e d 0 1 3 .ESPRI T u s i n g
t he mo di f i e d s p a t i a l t i me- f r e q ue n c y ma t r i x i S pr e s e nt e d.The mod i f i e d STFD ma t r i x whi c h h as t he s i mi l ar
ma t he ma t i c a l c on st r uc t i o n wi t h t he c o va r i a nc e ma t r i x c a n be ob t a i ne d wi t h t h e c r o s s W i gn e r- Vi l l e
di s t r i but i o ns o f t he o ut pu t s of t he ar r a y.Unde r t he c o nd i t i on of un i f o r m l i n e a r r a y,t he mo di f i e d STFD
ma t r i x c a n b e t r a n s f or me d i nt o t he ma t r i x wh i c h h a s t he pr op e r t y of r ot a t i on a l i nva r i a nc e . The n t he
ESPRI T c a n be a p pl i e d t o D O A e s t i ma t i on
角估计-Th e a l g or i t h m f o r di r e c t i o n- o f- a r r i va l o f t he wi d e ba n d c hi r p s i gna l s ba s e d 0 1 3 .ESPRI T u s i n g
t he mo di f i e d s p a t i a l t i me- f r e q ue n c y ma t r i x i S pr e s e nt e d.The mod i f i e d STFD ma t r i x whi c h h as t he s i mi l ar
ma t he ma t i c a l c on st r uc t i o n wi t h t he c o va r i a nc e ma t r i x c a n be ob t a i ne d wi t h t h e c r o s s W i gn e r- Vi l l e
di s t r i but i o ns o f t he o ut pu t s of t he ar r a y.Unde r t he c o nd i t i on of un i f o r m l i n e a r r a y,t he mo di f i e d STFD
ma t r i x c a n b e t r a n s f or me d i nt o t he ma t r i x wh i c h h a s t he pr op e r t y of r ot a t i on a l i nva r i a nc e . The n t he
ESPRI T c a n be a p pl i e d t o D O A e s t i ma t i on
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