Test coverage analysis is a structural testing technique, which helps to evaluate the sufficiency of software testing. This letter presents two test generation algorithms based on binary decision diagrams to produce t...Test coverage analysis is a structural testing technique, which helps to evaluate the sufficiency of software testing. This letter presents two test generation algorithms based on binary decision diagrams to produce tests for the Multiple-Condition Criterion(M-CC) and the Modified Condition/Decision Criterion(MC/DC), and describes the design of the C program Coverage Measurement Tool (CCMT), which can record dynamic behaviors of C programs and quantify test coverage.展开更多
The influences of second order Polarization Mode Dispersion (PMD) on light pulse are discussed from changing of the pulse shape and eye graph when considering second order PMD. The results by numerical simulation show...The influences of second order Polarization Mode Dispersion (PMD) on light pulse are discussed from changing of the pulse shape and eye graph when considering second order PMD. The results by numerical simulation show that the second-order PMD components associated with depolarization of the principal states can cause significant system impairments that cause overshoot at the edge of pulse. By the same time the compensation method for second-order PMD are also discussed by theoretically and experimentally. The experiment results show that it is very effective to compensate second order PMD by using two stage PMD compensator.展开更多
文摘Test coverage analysis is a structural testing technique, which helps to evaluate the sufficiency of software testing. This letter presents two test generation algorithms based on binary decision diagrams to produce tests for the Multiple-Condition Criterion(M-CC) and the Modified Condition/Decision Criterion(MC/DC), and describes the design of the C program Coverage Measurement Tool (CCMT), which can record dynamic behaviors of C programs and quantify test coverage.
文摘The influences of second order Polarization Mode Dispersion (PMD) on light pulse are discussed from changing of the pulse shape and eye graph when considering second order PMD. The results by numerical simulation show that the second-order PMD components associated with depolarization of the principal states can cause significant system impairments that cause overshoot at the edge of pulse. By the same time the compensation method for second-order PMD are also discussed by theoretically and experimentally. The experiment results show that it is very effective to compensate second order PMD by using two stage PMD compensator.
