DOA Estimation of Ultra Wide Band Impulse Radio Signal
For ultra wide band impulse signal direction of arrival estimation, conventional wide band algorithms need to divide the wide band frequency into narrow band bins, but the time width of an impulse is about a nano second and the collected signal duration to do Fourier transform is about a few nano seconds, does the frequency resolution satisfy the narrow band condition? We show that the narrow band assumption also hold. We also obtain the signal noise ratio loss when only one frequency bin data is used to do DOA estimation. When impulse waveform is known, a subspacebased high resolution joint DOA delay estimation algorithm is obtained.
MA Changzheng Boon Poh Ng
School of Electronic and Information Engineering, Zhongyuan Institute of Technology, China School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore
国际会议
武汉
英文
312-315
2005-09-23(万方平台首次上网日期,不代表论文的发表时间)