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In this paper, we develop a blind adaptive multiuser detector for synchronous code-division multiple access (CDMA) with a noise-whitening filter. The triangular structure of the noisewhitened model ensures complete resolution of detection ambiguities. To further improve the symbol error probability performance, we introduce decision feedback in our detector similar to the decorrelating decision-feedback detector (DDFD), thus forming the decision-feedback blind adaptive multiuser detectordoi:10.1109/25.820707 fatcat:7zn4lbltjjgulawntc7f5znjh4