CAJ | 학술논문

为检测海杂波中的微弱目标，文中采用实测数据分析了海杂波的Hilbert谱脊线及其粗糙度，研究了目标对其Hilbert谱脊线及其粗糙度的影响。研究发现，目标的出现将导致海杂波Hilbert谱脊线起伏趋予平滑，Hilbert谱脊线粗糙度减小，在此基础上，文中提出了采用Hilbert谱脊线粗糙度检测微弱目标的方法。仿真结果表明，与基于海杂波盒维数的方法和多脉冲CA—CFAR（100个脉冲）方法相比，该方法的检测性能较好。
위검측해잡파중적미약목표，문중채용실측수거분석료해잡파적Hilbert보척선급기조조도，연구료목표대기Hilbert보척선급기조조도적영향。연구발현，목표적출현장도치해잡파Hilbert보척선기복추여평활，Hilbert보척선조조도감소，재차기출상，문중제출료채용Hilbert보척선조조도검측미약목표적방법。방진결과표명，여기우해잡파합유수적방법화다맥충CA—CFAR（100개맥충）방법상비，해방법적검측성능교호。
To detect the weak target in the sea clutter, the Hilbert spectrum ridge and its roughness of the real sea clutter data was analyzed, and the influence of the target to them was also discussed. It was found that the appearance of the target would smooth the Hilbert spectrum ridge of the sea clutter and decrease its Hilbert spectrum ridge roughness, so the Hilbert spectrum ridge roughness was proposed to detect the weak target. As shown by the simulation result, the performance of the method proposed in this paper was better than the detection method directly using box dimension and the CA-CFAR （100 pulses）.