Enum KnownClockClass 

pub enum KnownClockClass {
    TcxoSteadyState,
    OcxoWarmup,
    FreeRunXtal,
    PllAcquisition,
    LowNoiseOcxo,
    Unknown,
}

Canonical clock / oscillator instability classes matched by Allan slope.

Classified by fitting log-log slope α to σ_y(τ) ∝ τ^α across the provided τ window. α ≈ –1 → white FM; α ≈ –3/2 → flicker FM (OCXO); α ≈ +1/2 → random walk FM; α ≈ 0 → flicker phase noise.

Variants

TcxoSteadyState

White frequency modulation (α ≈ –1.0). Typical of a TCXO in steady-state or immediately post-warmup.

OcxoWarmup

Flicker frequency modulation (α ≈ –0.5, strong τ^0 floor). Typical of OCXO during oven thermal equilibration (~1–10 min).

FreeRunXtal

Random walk frequency modulation (α ≈ +0.5). Typical of a free-run crystal without temperature compensation.

PllAcquisition

Transient oscillation around a fast-crossing τ value. Indicates an active PLL mid-acquisition or a loop bandwidth mismatch.

LowNoiseOcxo

Flicker phase noise (α ≈ –1.5), adjacent to carrier. Typical of a low-noise OCXO or Rb oscillator in steady-state.

Unknown

Slope could not be determined (too few τ points or noisy data).

Implementations

impl KnownClockClass

pub const fn label(self) -> &'static str

Human-readable label for SigMF annotation or log emission.

pub const fn is_internal_cause(self) -> bool

Whether this class indicates an internal cause (clock/LO issue) rather than an external cause (channel interference).

Trait Implementations

impl Clone for KnownClockClass

fn clone(&self) -> KnownClockClass

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for KnownClockClass

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for KnownClockClass

fn eq(&self, other: &KnownClockClass) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for KnownClockClass

impl Eq for KnownClockClass

impl StructuralPartialEq for KnownClockClass