  In this paper, we consider recovering the signal $\bm{x}\in\mathbb{R}^{n}$
from its few noisy measurements $\bm{b}=A\bm{x}+\bm{z}$, where
$A\in\mathbb{R}^{m\times n}$ with $m\ll n$ is the measurement matrix, and
$\bm{z}\in\mathbb{R}^{m}$ is the measurement noise/error. We first establish a
coherence-based performance guarantee for a regularized $\ell_{1}$-norm
minimization model to recover such signals $\bm{x}$ in the presence of the
$\ell_{2}$-norm bounded noise, i.e., $\|\bm{z}\|_{2}\leq\epsilon$, and then
extend these theoretical results to guarantee the robust recovery of the
signals corrupted with the Dantzig Selector (DS) type noise, i.e.,
$\|A^{T}\bm{z}\|_{\infty}\leq\epsilon$, and the structured block-sparse signal
recovery in the presence of the bounded noise. To the best of our knowledge, we
first extend nontrivially the sharp uniform recovery condition derived by Cai,
Wang and Xu (2010) for the constrained $\ell_{1}$-norm minimization model,
which takes the form of \begin{align*} \mu<\frac{1}{2k-1}, \end{align*} where
$\mu$ is defined as the (mutual) coherence of $A$, to two unconstrained
regularized $\ell_{1}$-norm minimization models to guarantee the robust
recovery of any signals (not necessary to be $k$-sparse) under the
$\ell_{2}$-norm bounded noise and the DS type noise settings, respectively.
Besides, a uniform recovery condition and its two resulting error estimates are
also established for the first time to our knowledge, for the robust
block-sparse signal recovery using a regularized mixed $\ell_{2}/\ell_{1}$-norm
minimization model, and these results well complement the existing theoretical
investigation on this model which focuses on the non-uniform recovery
conditions and/or the robust signal recovery in presence of the random noise.
