An algorithm for characterizing attosecond extreme ultraviolet pulses that is not bandwidth-limited,\nrequires no interpolation of the experimental data, and makes no approximations beyond the strongfield\napproximation is introduced. This approach fully incorporates the dipole transition matrix\nelement into the retrieval process. Unlike attosecond retrieval methods such as phase retrieval by\nomega oscillation filtering (PROOF), or improved PROOF, it simultaneously retrieves both the\nattosecond and infrared (IR) pulses, without placing fundamental restrictions on the IR pulse\nduration, intensity or bandwidth. The new algorithm is validated both numerically and experimentally,\nand is also found to have practical advantages. These include an increased robustness to noise,\nand relaxed requirements for the size of the experimental dataset and the intensity of the streaking\npulse.
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