基于粒子群优化的移不变双基前视SAR飞行模式设计方法

• Format: Patent
• Language: Chinese
• Published: 14.07.2017
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; CALCULATING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; COUNTING; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; ELECTRIC DIGITAL DATA PROCESSING; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TESTING

本发明公开了种基于粒子群优化的移不变双基前视SAR飞行模式设计方法，包括以下步骤：S1、建立成像性能与飞行模式参数的定量关系；S2、设定预期达到的成像指标；S3、将飞行模式参数与设定的成像指标构成个非线性方程组；S4、将S3得到的非线性方程组转换为多目标优化问题；S5、运用粒子群优化算法求解步骤S4中的多目标优化问题，将粒子群优化算法最后次迭代得到的集合作为飞行模式参数的集合。本发明将给定成像指标条件下的移不变双基前视SAR飞行模式设计转换为多目标优化问题，并通过粒子群优化算法实现飞行模式参数的求解，在飞行模式设计时综合考虑了多种成像性能指标,能够达到预期的成像性能。 The invention discloses a shift invariant double-base forward-looking SAR airplane mode designing method based on particle swarm optimization. The method comprises the following steps of 1, building a quantitative relation between the imaging performance and airplane mode parameters; 2, setting imaging indexes expected to be reached; 3, enabling the airplane mode parameters and the set imaging indexes to form a system of nonlinear equations; 4, converting the system of nonlinear equations into a multi-objective optimization problem; 5, applying a particle swarm optimization algorithm to solving the multi-objective optimization problem obtained in the fourth step, and using a set obtained by the last iteration of the particle s